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Finding the Fourth Proportional to 156,710.90, 235,066.35 and 45,902.90

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Solution

The fourth proportional to 156,710.90, 235,066.35 and 45,902.90 is: 68,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,710.90 : 235,066.35 = 45,902.90 : x
  2. Step 2: Convert to fraction form
    156,710.90/235,066.35 = 45,902.90/x
  3. Step 3: Cross multiply
    156,710.90x = 235,066.35 × 45,902.90
  4. Step 4: Simplify right side
    156,710.90x = 10,790,227,157.42
  5. Step 5: Solve for x
    x = 10,790,227,157.42/156,710.90
  6. Step 6: Final answer
    x = 68,854.35

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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.