Home / 141,808.46-195,693.17-77,278.28

Finding the Fourth Proportional to 141,808.46, 195,693.17 and 77,278.28

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Solution

The fourth proportional to 141,808.46, 195,693.17 and 77,278.28 is: 106,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.46 : 195,693.17 = 77,278.28 : x
  2. Step 2: Convert to fraction form
    141,808.46/195,693.17 = 77,278.28/x
  3. Step 3: Cross multiply
    141,808.46x = 195,693.17 × 77,278.28
  4. Step 4: Simplify right side
    141,808.46x = 15,122,830,220.49
  5. Step 5: Solve for x
    x = 15,122,830,220.49/141,808.46
  6. Step 6: Final answer
    x = 106,642.66

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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.