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Finding the Fourth Proportional to 162,437.86, 243,653.95 and 67,718.89

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Solution

The fourth proportional to 162,437.86, 243,653.95 and 67,718.89 is: 101,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,437.86 : 243,653.95 = 67,718.89 : x
  2. Step 2: Convert to fraction form
    162,437.86/243,653.95 = 67,718.89/x
  3. Step 3: Cross multiply
    162,437.86x = 243,653.95 × 67,718.89
  4. Step 4: Simplify right side
    162,437.86x = 16,499,975,038.12
  5. Step 5: Solve for x
    x = 16,499,975,038.12/162,437.86
  6. Step 6: Final answer
    x = 101,577.15

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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.