Home / 156,781.72-235,211.64-45,973.72

Finding the Fourth Proportional to 156,781.72, 235,211.64 and 45,973.72

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Solution

The fourth proportional to 156,781.72, 235,211.64 and 45,973.72 is: 68,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,781.72 : 235,211.64 = 45,973.72 : x
  2. Step 2: Convert to fraction form
    156,781.72/235,211.64 = 45,973.72/x
  3. Step 3: Cross multiply
    156,781.72x = 235,211.64 × 45,973.72
  4. Step 4: Simplify right side
    156,781.72x = 10,813,554,078.10
  5. Step 5: Solve for x
    x = 10,813,554,078.10/156,781.72
  6. Step 6: Final answer
    x = 68,972.03

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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.