Home / 187,513.68-258,775.08-102,630.72

Finding the Fourth Proportional to 187,513.68, 258,775.08 and 102,630.72

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Solution

The fourth proportional to 187,513.68, 258,775.08 and 102,630.72 is: 141,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,513.68 : 258,775.08 = 102,630.72 : x
  2. Step 2: Convert to fraction form
    187,513.68/258,775.08 = 102,630.72/x
  3. Step 3: Cross multiply
    187,513.68x = 258,775.08 × 102,630.72
  4. Step 4: Simplify right side
    187,513.68x = 26,558,272,778.46
  5. Step 5: Solve for x
    x = 26,558,272,778.46/187,513.68
  6. Step 6: Final answer
    x = 141,633.79

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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.