Home / 88,426.10-132,639.15-74,429.30

Finding the Fourth Proportional to 88,426.10, 132,639.15 and 74,429.30

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Solution

The fourth proportional to 88,426.10, 132,639.15 and 74,429.30 is: 111,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,426.10 : 132,639.15 = 74,429.30 : x
  2. Step 2: Convert to fraction form
    88,426.10/132,639.15 = 74,429.30/x
  3. Step 3: Cross multiply
    88,426.10x = 132,639.15 × 74,429.30
  4. Step 4: Simplify right side
    88,426.10x = 9,872,239,087.10
  5. Step 5: Solve for x
    x = 9,872,239,087.10/88,426.10
  6. Step 6: Final answer
    x = 111,643.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.