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Finding the Fourth Proportional to 187,157.61, 258,200.33 and 130,601.79

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Solution

The fourth proportional to 187,157.61, 258,200.33 and 130,601.79 is: 180,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,157.61 : 258,200.33 = 130,601.79 : x
  2. Step 2: Convert to fraction form
    187,157.61/258,200.33 = 130,601.79/x
  3. Step 3: Cross multiply
    187,157.61x = 258,200.33 × 130,601.79
  4. Step 4: Simplify right side
    187,157.61x = 33,721,424,623.58
  5. Step 5: Solve for x
    x = 33,721,424,623.58/187,157.61
  6. Step 6: Final answer
    x = 180,176.61

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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.