Home / 125,875.52-173,762.64-90,003.20

Finding the Fourth Proportional to 125,875.52, 173,762.64 and 90,003.20

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Solution

The fourth proportional to 125,875.52, 173,762.64 and 90,003.20 is: 124,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.52 : 173,762.64 = 90,003.20 : x
  2. Step 2: Convert to fraction form
    125,875.52/173,762.64 = 90,003.20/x
  3. Step 3: Cross multiply
    125,875.52x = 173,762.64 × 90,003.20
  4. Step 4: Simplify right side
    125,875.52x = 15,639,193,640.45
  5. Step 5: Solve for x
    x = 15,639,193,640.45/125,875.52
  6. Step 6: Final answer
    x = 124,243.33

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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.