Home / 141,386.58-195,114.15-77,728.55

Finding the Fourth Proportional to 141,386.58, 195,114.15 and 77,728.55

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Solution

The fourth proportional to 141,386.58, 195,114.15 and 77,728.55 is: 107,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,386.58 : 195,114.15 = 77,728.55 : x
  2. Step 2: Convert to fraction form
    141,386.58/195,114.15 = 77,728.55/x
  3. Step 3: Cross multiply
    141,386.58x = 195,114.15 × 77,728.55
  4. Step 4: Simplify right side
    141,386.58x = 15,165,938,988.41
  5. Step 5: Solve for x
    x = 15,165,938,988.41/141,386.58
  6. Step 6: Final answer
    x = 107,265.76

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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.