Home / 144,003.40-216,005.10-99,617.80

Finding the Fourth Proportional to 144,003.40, 216,005.10 and 99,617.80

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Solution

The fourth proportional to 144,003.40, 216,005.10 and 99,617.80 is: 149,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,003.40 : 216,005.10 = 99,617.80 : x
  2. Step 2: Convert to fraction form
    144,003.40/216,005.10 = 99,617.80/x
  3. Step 3: Cross multiply
    144,003.40x = 216,005.10 × 99,617.80
  4. Step 4: Simplify right side
    144,003.40x = 21,517,952,850.78
  5. Step 5: Solve for x
    x = 21,517,952,850.78/144,003.40
  6. Step 6: Final answer
    x = 149,426.70

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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.