Home / 144,002.40-216,003.60-91,471.20

Finding the Fourth Proportional to 144,002.40, 216,003.60 and 91,471.20

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Solution

The fourth proportional to 144,002.40, 216,003.60 and 91,471.20 is: 137,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.40 : 216,003.60 = 91,471.20 : x
  2. Step 2: Convert to fraction form
    144,002.40/216,003.60 = 91,471.20/x
  3. Step 3: Cross multiply
    144,002.40x = 216,003.60 × 91,471.20
  4. Step 4: Simplify right side
    144,002.40x = 19,758,108,496.32
  5. Step 5: Solve for x
    x = 19,758,108,496.32/144,002.40
  6. Step 6: Final answer
    x = 137,206.80

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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.