Home / 141,312.88-195,010.92-77,649.20

Finding the Fourth Proportional to 141,312.88, 195,010.92 and 77,649.20

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Solution

The fourth proportional to 141,312.88, 195,010.92 and 77,649.20 is: 107,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,312.88 : 195,010.92 = 77,649.20 : x
  2. Step 2: Convert to fraction form
    141,312.88/195,010.92 = 77,649.20/x
  3. Step 3: Cross multiply
    141,312.88x = 195,010.92 × 77,649.20
  4. Step 4: Simplify right side
    141,312.88x = 15,142,441,929.26
  5. Step 5: Solve for x
    x = 15,142,441,929.26/141,312.88
  6. Step 6: Final answer
    x = 107,155.43

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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.