Home / 134,892.30-186,225.93-81,190.50

Finding the Fourth Proportional to 134,892.30, 186,225.93 and 81,190.50

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Solution

The fourth proportional to 134,892.30, 186,225.93 and 81,190.50 is: 112,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,892.30 : 186,225.93 = 81,190.50 : x
  2. Step 2: Convert to fraction form
    134,892.30/186,225.93 = 81,190.50/x
  3. Step 3: Cross multiply
    134,892.30x = 186,225.93 × 81,190.50
  4. Step 4: Simplify right side
    134,892.30x = 15,119,776,369.67
  5. Step 5: Solve for x
    x = 15,119,776,369.67/134,892.30
  6. Step 6: Final answer
    x = 112,087.76

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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.