Home / 124,921.80-187,382.70-72,466.20

Finding the Fourth Proportional to 124,921.80, 187,382.70 and 72,466.20

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Solution

The fourth proportional to 124,921.80, 187,382.70 and 72,466.20 is: 108,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,921.80 : 187,382.70 = 72,466.20 : x
  2. Step 2: Convert to fraction form
    124,921.80/187,382.70 = 72,466.20/x
  3. Step 3: Cross multiply
    124,921.80x = 187,382.70 × 72,466.20
  4. Step 4: Simplify right side
    124,921.80x = 13,578,912,214.74
  5. Step 5: Solve for x
    x = 13,578,912,214.74/124,921.80
  6. Step 6: Final answer
    x = 108,699.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.