Home / 129,714.30-179,002.08-72,355.32

Finding the Fourth Proportional to 129,714.30, 179,002.08 and 72,355.32

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Solution

The fourth proportional to 129,714.30, 179,002.08 and 72,355.32 is: 99,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,714.30 : 179,002.08 = 72,355.32 : x
  2. Step 2: Convert to fraction form
    129,714.30/179,002.08 = 72,355.32/x
  3. Step 3: Cross multiply
    129,714.30x = 179,002.08 × 72,355.32
  4. Step 4: Simplify right side
    129,714.30x = 12,951,752,779.07
  5. Step 5: Solve for x
    x = 12,951,752,779.07/129,714.30
  6. Step 6: Final answer
    x = 99,848.30

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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.