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Finding the Fourth Proportional to 152,526, 210,485.88 and 92,910

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Solution

The fourth proportional to 152,526, 210,485.88 and 92,910 is: 128,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,526 : 210,485.88 = 92,910 : x
  2. Step 2: Convert to fraction form
    152,526/210,485.88 = 92,910/x
  3. Step 3: Cross multiply
    152,526x = 210,485.88 × 92,910
  4. Step 4: Simplify right side
    152,526x = 19,556,243,110.80
  5. Step 5: Solve for x
    x = 19,556,243,110.80/152,526
  6. Step 6: Final answer
    x = 128,215.80

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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.