Home / 187,108.76-258,136.79-115,364.22

Finding the Fourth Proportional to 187,108.76, 258,136.79 and 115,364.22

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Solution

The fourth proportional to 187,108.76, 258,136.79 and 115,364.22 is: 159,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,108.76 : 258,136.79 = 115,364.22 : x
  2. Step 2: Convert to fraction form
    187,108.76/258,136.79 = 115,364.22/x
  3. Step 3: Cross multiply
    187,108.76x = 258,136.79 × 115,364.22
  4. Step 4: Simplify right side
    187,108.76x = 29,779,748,854.83
  5. Step 5: Solve for x
    x = 29,779,748,854.83/187,108.76
  6. Step 6: Final answer
    x = 159,157.43

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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.