Home / 125,160.31-187,657.21-80,762.82

Finding the Fourth Proportional to 125,160.31, 187,657.21 and 80,762.82

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Solution

The fourth proportional to 125,160.31, 187,657.21 and 80,762.82 is: 121,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,160.31 : 187,657.21 = 80,762.82 : x
  2. Step 2: Convert to fraction form
    125,160.31/187,657.21 = 80,762.82/x
  3. Step 3: Cross multiply
    125,160.31x = 187,657.21 × 80,762.82
  4. Step 4: Simplify right side
    125,160.31x = 15,155,725,472.93
  5. Step 5: Solve for x
    x = 15,155,725,472.93/125,160.31
  6. Step 6: Final answer
    x = 121,090.51

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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.