Home / 112,798.90-155,679.06-65,042.92

Finding the Fourth Proportional to 112,798.90, 155,679.06 and 65,042.92

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Solution

The fourth proportional to 112,798.90, 155,679.06 and 65,042.92 is: 89,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,798.90 : 155,679.06 = 65,042.92 : x
  2. Step 2: Convert to fraction form
    112,798.90/155,679.06 = 65,042.92/x
  3. Step 3: Cross multiply
    112,798.90x = 155,679.06 × 65,042.92
  4. Step 4: Simplify right side
    112,798.90x = 10,125,820,645.26
  5. Step 5: Solve for x
    x = 10,125,820,645.26/112,798.90
  6. Step 6: Final answer
    x = 89,768.79

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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.