Home / 103,434.03-142,728.88-58,101.75

Finding the Fourth Proportional to 103,434.03, 142,728.88 and 58,101.75

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Solution

The fourth proportional to 103,434.03, 142,728.88 and 58,101.75 is: 80,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,434.03 : 142,728.88 = 58,101.75 : x
  2. Step 2: Convert to fraction form
    103,434.03/142,728.88 = 58,101.75/x
  3. Step 3: Cross multiply
    103,434.03x = 142,728.88 × 58,101.75
  4. Step 4: Simplify right side
    103,434.03x = 8,292,797,703.54
  5. Step 5: Solve for x
    x = 8,292,797,703.54/103,434.03
  6. Step 6: Final answer
    x = 80,174.75

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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.