Home / 109,969.32-151,882.02-74,097.12

Finding the Fourth Proportional to 109,969.32, 151,882.02 and 74,097.12

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Solution

The fourth proportional to 109,969.32, 151,882.02 and 74,097.12 is: 102,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,969.32 : 151,882.02 = 74,097.12 : x
  2. Step 2: Convert to fraction form
    109,969.32/151,882.02 = 74,097.12/x
  3. Step 3: Cross multiply
    109,969.32x = 151,882.02 × 74,097.12
  4. Step 4: Simplify right side
    109,969.32x = 11,254,020,261.78
  5. Step 5: Solve for x
    x = 11,254,020,261.78/109,969.32
  6. Step 6: Final answer
    x = 102,337.82

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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.