Home / 158,758.92-219,031.02-90,726.30

Finding the Fourth Proportional to 158,758.92, 219,031.02 and 90,726.30

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Solution

The fourth proportional to 158,758.92, 219,031.02 and 90,726.30 is: 125,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,758.92 : 219,031.02 = 90,726.30 : x
  2. Step 2: Convert to fraction form
    158,758.92/219,031.02 = 90,726.30/x
  3. Step 3: Cross multiply
    158,758.92x = 219,031.02 × 90,726.30
  4. Step 4: Simplify right side
    158,758.92x = 19,871,874,029.83
  5. Step 5: Solve for x
    x = 19,871,874,029.83/158,758.92
  6. Step 6: Final answer
    x = 125,170.13

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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.