Home / 109,045.20-163,349.10-73,615.80

Finding the Fourth Proportional to 109,045.20, 163,349.10 and 73,615.80

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Solution

The fourth proportional to 109,045.20, 163,349.10 and 73,615.80 is: 110,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,045.20 : 163,349.10 = 73,615.80 : x
  2. Step 2: Convert to fraction form
    109,045.20/163,349.10 = 73,615.80/x
  3. Step 3: Cross multiply
    109,045.20x = 163,349.10 × 73,615.80
  4. Step 4: Simplify right side
    109,045.20x = 12,025,074,675.78
  5. Step 5: Solve for x
    x = 12,025,074,675.78/109,045.20
  6. Step 6: Final answer
    x = 110,276.06

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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.