Home / 141,403.04-195,136.32-77,741.92

Finding the Fourth Proportional to 141,403.04, 195,136.32 and 77,741.92

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Solution

The fourth proportional to 141,403.04, 195,136.32 and 77,741.92 is: 107,283.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,403.04 : 195,136.32 = 77,741.92 : x
  2. Step 2: Convert to fraction form
    141,403.04/195,136.32 = 77,741.92/x
  3. Step 3: Cross multiply
    141,403.04x = 195,136.32 × 77,741.92
  4. Step 4: Simplify right side
    141,403.04x = 15,170,272,178.53
  5. Step 5: Solve for x
    x = 15,170,272,178.53/141,403.04
  6. Step 6: Final answer
    x = 107,283.92

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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.