Home / 154,451.20-213,148.80-94,854.40

Finding the Fourth Proportional to 154,451.20, 213,148.80 and 94,854.40

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Solution

The fourth proportional to 154,451.20, 213,148.80 and 94,854.40 is: 130,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,451.20 : 213,148.80 = 94,854.40 : x
  2. Step 2: Convert to fraction form
    154,451.20/213,148.80 = 94,854.40/x
  3. Step 3: Cross multiply
    154,451.20x = 213,148.80 × 94,854.40
  4. Step 4: Simplify right side
    154,451.20x = 20,218,101,534.72
  5. Step 5: Solve for x
    x = 20,218,101,534.72/154,451.20
  6. Step 6: Final answer
    x = 130,902.85

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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.