Home / 158,073.26-218,146.77-90,100.49

Finding the Fourth Proportional to 158,073.26, 218,146.77 and 90,100.49

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Solution

The fourth proportional to 158,073.26, 218,146.77 and 90,100.49 is: 124,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,073.26 : 218,146.77 = 90,100.49 : x
  2. Step 2: Convert to fraction form
    158,073.26/218,146.77 = 90,100.49/x
  3. Step 3: Cross multiply
    158,073.26x = 218,146.77 × 90,100.49
  4. Step 4: Simplify right side
    158,073.26x = 19,655,129,778.18
  5. Step 5: Solve for x
    x = 19,655,129,778.18/158,073.26
  6. Step 6: Final answer
    x = 124,341.91

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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.