Home / 187,421.52-258,552.36-115,775.76

Finding the Fourth Proportional to 187,421.52, 258,552.36 and 115,775.76

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Solution

The fourth proportional to 187,421.52, 258,552.36 and 115,775.76 is: 159,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,421.52 : 258,552.36 = 115,775.76 : x
  2. Step 2: Convert to fraction form
    187,421.52/258,552.36 = 115,775.76/x
  3. Step 3: Cross multiply
    187,421.52x = 258,552.36 × 115,775.76
  4. Step 4: Simplify right side
    187,421.52x = 29,934,095,978.79
  5. Step 5: Solve for x
    x = 29,934,095,978.79/187,421.52
  6. Step 6: Final answer
    x = 159,715.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.