Home / 141,302.64-195,006.96-77,640.96

Finding the Fourth Proportional to 141,302.64, 195,006.96 and 77,640.96

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Solution

The fourth proportional to 141,302.64, 195,006.96 and 77,640.96 is: 107,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,302.64 : 195,006.96 = 77,640.96 : x
  2. Step 2: Convert to fraction form
    141,302.64/195,006.96 = 77,640.96/x
  3. Step 3: Cross multiply
    141,302.64x = 195,006.96 × 77,640.96
  4. Step 4: Simplify right side
    141,302.64x = 15,140,527,581.08
  5. Step 5: Solve for x
    x = 15,140,527,581.08/141,302.64
  6. Step 6: Final answer
    x = 107,149.64

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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.