Home / 109,098.20-163,647.30-90,666.20

Finding the Fourth Proportional to 109,098.20, 163,647.30 and 90,666.20

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Solution

The fourth proportional to 109,098.20, 163,647.30 and 90,666.20 is: 135,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,098.20 : 163,647.30 = 90,666.20 : x
  2. Step 2: Convert to fraction form
    109,098.20/163,647.30 = 90,666.20/x
  3. Step 3: Cross multiply
    109,098.20x = 163,647.30 × 90,666.20
  4. Step 4: Simplify right side
    109,098.20x = 14,837,278,831.26
  5. Step 5: Solve for x
    x = 14,837,278,831.26/109,098.20
  6. Step 6: Final answer
    x = 135,999.30

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1.5x scale

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.