Home / 156,895.04-216,514.14-89,840

Finding the Fourth Proportional to 156,895.04, 216,514.14 and 89,840

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Solution

The fourth proportional to 156,895.04, 216,514.14 and 89,840 is: 123,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,895.04 : 216,514.14 = 89,840 : x
  2. Step 2: Convert to fraction form
    156,895.04/216,514.14 = 89,840/x
  3. Step 3: Cross multiply
    156,895.04x = 216,514.14 × 89,840
  4. Step 4: Simplify right side
    156,895.04x = 19,451,630,337.60
  5. Step 5: Solve for x
    x = 19,451,630,337.60/156,895.04
  6. Step 6: Final answer
    x = 123,978.62

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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.