Home / 141,400.67-195,131.18-77,737.91

Finding the Fourth Proportional to 141,400.67, 195,131.18 and 77,737.91

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Solution

The fourth proportional to 141,400.67, 195,131.18 and 77,737.91 is: 107,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,400.67 : 195,131.18 = 77,737.91 : x
  2. Step 2: Convert to fraction form
    141,400.67/195,131.18 = 77,737.91/x
  3. Step 3: Cross multiply
    141,400.67x = 195,131.18 × 77,737.91
  4. Step 4: Simplify right side
    141,400.67x = 15,169,089,720.34
  5. Step 5: Solve for x
    x = 15,169,089,720.34/141,400.67
  6. Step 6: Final answer
    x = 107,277.35

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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.