Home / 115,732.64-159,658.08-67,985.12

Finding the Fourth Proportional to 115,732.64, 159,658.08 and 67,985.12

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Solution

The fourth proportional to 115,732.64, 159,658.08 and 67,985.12 is: 93,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,732.64 : 159,658.08 = 67,985.12 : x
  2. Step 2: Convert to fraction form
    115,732.64/159,658.08 = 67,985.12/x
  3. Step 3: Cross multiply
    115,732.64x = 159,658.08 × 67,985.12
  4. Step 4: Simplify right side
    115,732.64x = 10,854,373,727.77
  5. Step 5: Solve for x
    x = 10,854,373,727.77/115,732.64
  6. Step 6: Final answer
    x = 93,788.35

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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.