Home / 144,839.28-199,875.18-79,427.16

Finding the Fourth Proportional to 144,839.28, 199,875.18 and 79,427.16

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Solution

The fourth proportional to 144,839.28, 199,875.18 and 79,427.16 is: 109,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,839.28 : 199,875.18 = 79,427.16 : x
  2. Step 2: Convert to fraction form
    144,839.28/199,875.18 = 79,427.16/x
  3. Step 3: Cross multiply
    144,839.28x = 199,875.18 × 79,427.16
  4. Step 4: Simplify right side
    144,839.28x = 15,875,517,901.89
  5. Step 5: Solve for x
    x = 15,875,517,901.89/144,839.28
  6. Step 6: Final answer
    x = 109,607.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.