Home / 86,598.10-129,897.15-72,601.30

Finding the Fourth Proportional to 86,598.10, 129,897.15 and 72,601.30

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Solution

The fourth proportional to 86,598.10, 129,897.15 and 72,601.30 is: 108,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,598.10 : 129,897.15 = 72,601.30 : x
  2. Step 2: Convert to fraction form
    86,598.10/129,897.15 = 72,601.30/x
  3. Step 3: Cross multiply
    86,598.10x = 129,897.15 × 72,601.30
  4. Step 4: Simplify right side
    86,598.10x = 9,430,701,956.30
  5. Step 5: Solve for x
    x = 9,430,701,956.30/86,598.10
  6. Step 6: Final answer
    x = 108,901.95

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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.