Home / 141,488.26-195,258.99-77,830.90

Finding the Fourth Proportional to 141,488.26, 195,258.99 and 77,830.90

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Solution

The fourth proportional to 141,488.26, 195,258.99 and 77,830.90 is: 107,409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,488.26 : 195,258.99 = 77,830.90 : x
  2. Step 2: Convert to fraction form
    141,488.26/195,258.99 = 77,830.90/x
  3. Step 3: Cross multiply
    141,488.26x = 195,258.99 × 77,830.90
  4. Step 4: Simplify right side
    141,488.26x = 15,197,182,924.79
  5. Step 5: Solve for x
    x = 15,197,182,924.79/141,488.26
  6. Step 6: Final answer
    x = 107,409.50

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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.