Home / 141,521.60-195,294.88-77,858.72

Finding the Fourth Proportional to 141,521.60, 195,294.88 and 77,858.72

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Solution

The fourth proportional to 141,521.60, 195,294.88 and 77,858.72 is: 107,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.60 : 195,294.88 = 77,858.72 : x
  2. Step 2: Convert to fraction form
    141,521.60/195,294.88 = 77,858.72/x
  3. Step 3: Cross multiply
    141,521.60x = 195,294.88 × 77,858.72
  4. Step 4: Simplify right side
    141,521.60x = 15,205,409,379.35
  5. Step 5: Solve for x
    x = 15,205,409,379.35/141,521.60
  6. Step 6: Final answer
    x = 107,442.32

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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.