Home / 215,728.08-323,374.12-89,193.72

Finding the Fourth Proportional to 215,728.08, 323,374.12 and 89,193.72

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Solution

The fourth proportional to 215,728.08, 323,374.12 and 89,193.72 is: 133,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,728.08 : 323,374.12 = 89,193.72 : x
  2. Step 2: Convert to fraction form
    215,728.08/323,374.12 = 89,193.72/x
  3. Step 3: Cross multiply
    215,728.08x = 323,374.12 × 89,193.72
  4. Step 4: Simplify right side
    215,728.08x = 28,842,940,714.53
  5. Step 5: Solve for x
    x = 28,842,940,714.53/215,728.08
  6. Step 6: Final answer
    x = 133,700.45

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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.