Home / 144,629.20-216,943.80-129,903.40

Finding the Fourth Proportional to 144,629.20, 216,943.80 and 129,903.40

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Solution

The fourth proportional to 144,629.20, 216,943.80 and 129,903.40 is: 194,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,629.20 : 216,943.80 = 129,903.40 : x
  2. Step 2: Convert to fraction form
    144,629.20/216,943.80 = 129,903.40/x
  3. Step 3: Cross multiply
    144,629.20x = 216,943.80 × 129,903.40
  4. Step 4: Simplify right side
    144,629.20x = 28,181,737,228.92
  5. Step 5: Solve for x
    x = 28,181,737,228.92/144,629.20
  6. Step 6: Final answer
    x = 194,855.10

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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.