Home / 187,423.74-258,686.28-129,362.00

Finding the Fourth Proportional to 187,423.74, 258,686.28 and 129,362.00

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Solution

The fourth proportional to 187,423.74, 258,686.28 and 129,362.00 is: 178,548.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,423.74 : 258,686.28 = 129,362.00 : x
  2. Step 2: Convert to fraction form
    187,423.74/258,686.28 = 129,362.00/x
  3. Step 3: Cross multiply
    187,423.74x = 258,686.28 × 129,362.00
  4. Step 4: Simplify right side
    187,423.74x = 33,464,173,259.93
  5. Step 5: Solve for x
    x = 33,464,173,259.93/187,423.74
  6. Step 6: Final answer
    x = 178,548.21

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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.