Home / 141,350.31-195,061.16-77,686.74

Finding the Fourth Proportional to 141,350.31, 195,061.16 and 77,686.74

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Solution

The fourth proportional to 141,350.31, 195,061.16 and 77,686.74 is: 107,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,350.31 : 195,061.16 = 77,686.74 : x
  2. Step 2: Convert to fraction form
    141,350.31/195,061.16 = 77,686.74/x
  3. Step 3: Cross multiply
    141,350.31x = 195,061.16 × 77,686.74
  4. Step 4: Simplify right side
    141,350.31x = 15,153,665,232.58
  5. Step 5: Solve for x
    x = 15,153,665,232.58/141,350.31
  6. Step 6: Final answer
    x = 107,206.45

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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.