Home / 187,602.56-258,898.04-102,720.20

Finding the Fourth Proportional to 187,602.56, 258,898.04 and 102,720.20

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Solution

The fourth proportional to 187,602.56, 258,898.04 and 102,720.20 is: 141,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,602.56 : 258,898.04 = 102,720.20 : x
  2. Step 2: Convert to fraction form
    187,602.56/258,898.04 = 102,720.20/x
  3. Step 3: Cross multiply
    187,602.56x = 258,898.04 × 102,720.20
  4. Step 4: Simplify right side
    187,602.56x = 26,594,058,448.41
  5. Step 5: Solve for x
    x = 26,594,058,448.41/187,602.56
  6. Step 6: Final answer
    x = 141,757.44

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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.