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Finding the Fourth Proportional to 159,657.20, 239,485.80 and 64,938.90

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Solution

The fourth proportional to 159,657.20, 239,485.80 and 64,938.90 is: 97,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,657.20 : 239,485.80 = 64,938.90 : x
  2. Step 2: Convert to fraction form
    159,657.20/239,485.80 = 64,938.90/x
  3. Step 3: Cross multiply
    159,657.20x = 239,485.80 × 64,938.90
  4. Step 4: Simplify right side
    159,657.20x = 15,551,944,417.62
  5. Step 5: Solve for x
    x = 15,551,944,417.62/159,657.20
  6. Step 6: Final answer
    x = 97,408.35

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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.