Home / 125,932.86-173,780.64-72,215.28

Finding the Fourth Proportional to 125,932.86, 173,780.64 and 72,215.28

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Solution

The fourth proportional to 125,932.86, 173,780.64 and 72,215.28 is: 99,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,932.86 : 173,780.64 = 72,215.28 : x
  2. Step 2: Convert to fraction form
    125,932.86/173,780.64 = 72,215.28/x
  3. Step 3: Cross multiply
    125,932.86x = 173,780.64 × 72,215.28
  4. Step 4: Simplify right side
    125,932.86x = 12,549,617,576.18
  5. Step 5: Solve for x
    x = 12,549,617,576.18/125,932.86
  6. Step 6: Final answer
    x = 99,653.24

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1.5x scale

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.