Home / 109,030.20-163,545.30-90,003.30

Finding the Fourth Proportional to 109,030.20, 163,545.30 and 90,003.30

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Solution

The fourth proportional to 109,030.20, 163,545.30 and 90,003.30 is: 135,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,030.20 : 163,545.30 = 90,003.30 : x
  2. Step 2: Convert to fraction form
    109,030.20/163,545.30 = 90,003.30/x
  3. Step 3: Cross multiply
    109,030.20x = 163,545.30 × 90,003.30
  4. Step 4: Simplify right side
    109,030.20x = 14,719,616,699.49
  5. Step 5: Solve for x
    x = 14,719,616,699.49/109,030.20
  6. Step 6: Final answer
    x = 135,004.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.