Home / 144,617.20-216,925.80-129,891.40

Finding the Fourth Proportional to 144,617.20, 216,925.80 and 129,891.40

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Solution

The fourth proportional to 144,617.20, 216,925.80 and 129,891.40 is: 194,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.20 : 216,925.80 = 129,891.40 : x
  2. Step 2: Convert to fraction form
    144,617.20/216,925.80 = 129,891.40/x
  3. Step 3: Cross multiply
    144,617.20x = 216,925.80 × 129,891.40
  4. Step 4: Simplify right side
    144,617.20x = 28,176,795,858.12
  5. Step 5: Solve for x
    x = 28,176,795,858.12/144,617.20
  6. Step 6: Final answer
    x = 194,837.10

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1.5x scale

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.