Home / 148,686.35-224,143.68-138,788.06

Finding the Fourth Proportional to 148,686.35, 224,143.68 and 138,788.06

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Solution

The fourth proportional to 148,686.35, 224,143.68 and 138,788.06 is: 209,222.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,686.35 : 224,143.68 = 138,788.06 : x
  2. Step 2: Convert to fraction form
    148,686.35/224,143.68 = 138,788.06/x
  3. Step 3: Cross multiply
    148,686.35x = 224,143.68 × 138,788.06
  4. Step 4: Simplify right side
    148,686.35x = 31,108,465,387.74
  5. Step 5: Solve for x
    x = 31,108,465,387.74/148,686.35
  6. Step 6: Final answer
    x = 209,222.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.