Home / 125,875.02-173,761.95-90,002.70

Finding the Fourth Proportional to 125,875.02, 173,761.95 and 90,002.70

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Solution

The fourth proportional to 125,875.02, 173,761.95 and 90,002.70 is: 124,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.02 : 173,761.95 = 90,002.70 : x
  2. Step 2: Convert to fraction form
    125,875.02/173,761.95 = 90,002.70/x
  3. Step 3: Cross multiply
    125,875.02x = 173,761.95 × 90,002.70
  4. Step 4: Simplify right side
    125,875.02x = 15,639,044,657.27
  5. Step 5: Solve for x
    x = 15,639,044,657.27/125,875.02
  6. Step 6: Final answer
    x = 124,242.64

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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.