Home / 109,306.40-163,959.60-39,192.80

Finding the Fourth Proportional to 109,306.40, 163,959.60 and 39,192.80

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Solution

The fourth proportional to 109,306.40, 163,959.60 and 39,192.80 is: 58,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,306.40 : 163,959.60 = 39,192.80 : x
  2. Step 2: Convert to fraction form
    109,306.40/163,959.60 = 39,192.80/x
  3. Step 3: Cross multiply
    109,306.40x = 163,959.60 × 39,192.80
  4. Step 4: Simplify right side
    109,306.40x = 6,426,035,810.88
  5. Step 5: Solve for x
    x = 6,426,035,810.88/109,306.40
  6. Step 6: Final answer
    x = 58,789.20

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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.