Home / 141,545.36-195,327.72-77,877.20

Finding the Fourth Proportional to 141,545.36, 195,327.72 and 77,877.20

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Solution

The fourth proportional to 141,545.36, 195,327.72 and 77,877.20 is: 107,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,545.36 : 195,327.72 = 77,877.20 : x
  2. Step 2: Convert to fraction form
    141,545.36/195,327.72 = 77,877.20/x
  3. Step 3: Cross multiply
    141,545.36x = 195,327.72 × 77,877.20
  4. Step 4: Simplify right side
    141,545.36x = 15,211,575,915.98
  5. Step 5: Solve for x
    x = 15,211,575,915.98/141,545.36
  6. Step 6: Final answer
    x = 107,467.85

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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.