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Finding the Fourth Proportional to 109,225.60, 163,838.40 and 93,479.20

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Solution

The fourth proportional to 109,225.60, 163,838.40 and 93,479.20 is: 140,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,225.60 : 163,838.40 = 93,479.20 : x
  2. Step 2: Convert to fraction form
    109,225.60/163,838.40 = 93,479.20/x
  3. Step 3: Cross multiply
    109,225.60x = 163,838.40 × 93,479.20
  4. Step 4: Simplify right side
    109,225.60x = 15,315,482,561.28
  5. Step 5: Solve for x
    x = 15,315,482,561.28/109,225.60
  6. Step 6: Final answer
    x = 140,218.80

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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.