Home / 109,535.28-151,141.59-61,787.40

Finding the Fourth Proportional to 109,535.28, 151,141.59 and 61,787.40

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Solution

The fourth proportional to 109,535.28, 151,141.59 and 61,787.40 is: 85,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,535.28 : 151,141.59 = 61,787.40 : x
  2. Step 2: Convert to fraction form
    109,535.28/151,141.59 = 61,787.40/x
  3. Step 3: Cross multiply
    109,535.28x = 151,141.59 × 61,787.40
  4. Step 4: Simplify right side
    109,535.28x = 9,338,645,877.97
  5. Step 5: Solve for x
    x = 9,338,645,877.97/109,535.28
  6. Step 6: Final answer
    x = 85,256.97

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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.