Home / 156,721.90-235,104.45-56,857.90

Finding the Fourth Proportional to 156,721.90, 235,104.45 and 56,857.90

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Solution

The fourth proportional to 156,721.90, 235,104.45 and 56,857.90 is: 85,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.90 : 235,104.45 = 56,857.90 : x
  2. Step 2: Convert to fraction form
    156,721.90/235,104.45 = 56,857.90/x
  3. Step 3: Cross multiply
    156,721.90x = 235,104.45 × 56,857.90
  4. Step 4: Simplify right side
    156,721.90x = 13,367,545,307.66
  5. Step 5: Solve for x
    x = 13,367,545,307.66/156,721.90
  6. Step 6: Final answer
    x = 85,294.69

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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.