Home / 158,086,885.50-218,159,901.99-85,735,141.50

Finding the Fourth Proportional to 158,086,885.50, 218,159,901.99 and 85,735,141.50

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Solution

The fourth proportional to 158,086,885.50, 218,159,901.99 and 85,735,141.50 is: 118,314,495.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,086,885.50 : 218,159,901.99 = 85,735,141.50 : x
  2. Step 2: Convert to fraction form
    158,086,885.50/218,159,901.99 = 85,735,141.50/x
  3. Step 3: Cross multiply
    158,086,885.50x = 218,159,901.99 × 85,735,141.50
  4. Step 4: Simplify right side
    158,086,885.50x = 18,703,970,066,738,784
  5. Step 5: Solve for x
    x = 18,703,970,066,738,784/158,086,885.50
  6. Step 6: Final answer
    x = 118,314,495.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.