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Finding the Fourth Proportional to 162,456.71, 243,597.94 and 90,432.32

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Solution

The fourth proportional to 162,456.71, 243,597.94 and 90,432.32 is: 135,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,456.71 : 243,597.94 = 90,432.32 : x
  2. Step 2: Convert to fraction form
    162,456.71/243,597.94 = 90,432.32/x
  3. Step 3: Cross multiply
    162,456.71x = 243,597.94 × 90,432.32
  4. Step 4: Simplify right side
    162,456.71x = 22,029,125,417.35
  5. Step 5: Solve for x
    x = 22,029,125,417.35/162,456.71
  6. Step 6: Final answer
    x = 135,599.98

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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.