Home / 135,302.01-186,726.15-74,875.20

Finding the Fourth Proportional to 135,302.01, 186,726.15 and 74,875.20

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Solution

The fourth proportional to 135,302.01, 186,726.15 and 74,875.20 is: 103,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,302.01 : 186,726.15 = 74,875.20 : x
  2. Step 2: Convert to fraction form
    135,302.01/186,726.15 = 74,875.20/x
  3. Step 3: Cross multiply
    135,302.01x = 186,726.15 × 74,875.20
  4. Step 4: Simplify right side
    135,302.01x = 13,981,157,826.48
  5. Step 5: Solve for x
    x = 13,981,157,826.48/135,302.01
  6. Step 6: Final answer
    x = 103,332.96

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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.