Home / 144,419.10-216,628.65-129,903.90

Finding the Fourth Proportional to 144,419.10, 216,628.65 and 129,903.90

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Solution

The fourth proportional to 144,419.10, 216,628.65 and 129,903.90 is: 194,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,419.10 : 216,628.65 = 129,903.90 : x
  2. Step 2: Convert to fraction form
    144,419.10/216,628.65 = 129,903.90/x
  3. Step 3: Cross multiply
    144,419.10x = 216,628.65 × 129,903.90
  4. Step 4: Simplify right side
    144,419.10x = 28,140,906,486.74
  5. Step 5: Solve for x
    x = 28,140,906,486.74/144,419.10
  6. Step 6: Final answer
    x = 194,855.85

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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.