Home / 141,812.04-195,709.32-78,149.82

Finding the Fourth Proportional to 141,812.04, 195,709.32 and 78,149.82

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Solution

The fourth proportional to 141,812.04, 195,709.32 and 78,149.82 is: 107,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,812.04 : 195,709.32 = 78,149.82 : x
  2. Step 2: Convert to fraction form
    141,812.04/195,709.32 = 78,149.82/x
  3. Step 3: Cross multiply
    141,812.04x = 195,709.32 × 78,149.82
  4. Step 4: Simplify right side
    141,812.04x = 15,294,648,130.32
  5. Step 5: Solve for x
    x = 15,294,648,130.32/141,812.04
  6. Step 6: Final answer
    x = 107,851.55

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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.