Home / 153,854.63-212,304.99-89,306.73

Finding the Fourth Proportional to 153,854.63, 212,304.99 and 89,306.73

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Solution

The fourth proportional to 153,854.63, 212,304.99 and 89,306.73 is: 123,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,854.63 : 212,304.99 = 89,306.73 : x
  2. Step 2: Convert to fraction form
    153,854.63/212,304.99 = 89,306.73/x
  3. Step 3: Cross multiply
    153,854.63x = 212,304.99 × 89,306.73
  4. Step 4: Simplify right side
    153,854.63x = 18,960,264,419.58
  5. Step 5: Solve for x
    x = 18,960,264,419.58/153,854.63
  6. Step 6: Final answer
    x = 123,234.93

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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.