Home / 141,589.92-195,386.67-77,915.43

Finding the Fourth Proportional to 141,589.92, 195,386.67 and 77,915.43

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Solution

The fourth proportional to 141,589.92, 195,386.67 and 77,915.43 is: 107,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,589.92 : 195,386.67 = 77,915.43 : x
  2. Step 2: Convert to fraction form
    141,589.92/195,386.67 = 77,915.43/x
  3. Step 3: Cross multiply
    141,589.92x = 195,386.67 × 77,915.43
  4. Step 4: Simplify right side
    141,589.92x = 15,223,636,409.32
  5. Step 5: Solve for x
    x = 15,223,636,409.32/141,589.92
  6. Step 6: Final answer
    x = 107,519.21

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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.