Home / 141,549.88-195,344.04-77,890.36

Finding the Fourth Proportional to 141,549.88, 195,344.04 and 77,890.36

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Solution

The fourth proportional to 141,549.88, 195,344.04 and 77,890.36 is: 107,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,549.88 : 195,344.04 = 77,890.36 : x
  2. Step 2: Convert to fraction form
    141,549.88/195,344.04 = 77,890.36/x
  3. Step 3: Cross multiply
    141,549.88x = 195,344.04 × 77,890.36
  4. Step 4: Simplify right side
    141,549.88x = 15,215,417,599.45
  5. Step 5: Solve for x
    x = 15,215,417,599.45/141,549.88
  6. Step 6: Final answer
    x = 107,491.56

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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.