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Finding the Fourth Proportional to 161,568.60, 242,612.10 and 109,210.20

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Solution

The fourth proportional to 161,568.60, 242,612.10 and 109,210.20 is: 163,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,568.60 : 242,612.10 = 109,210.20 : x
  2. Step 2: Convert to fraction form
    161,568.60/242,612.10 = 109,210.20/x
  3. Step 3: Cross multiply
    161,568.60x = 242,612.10 × 109,210.20
  4. Step 4: Simplify right side
    161,568.60x = 26,495,715,963.42
  5. Step 5: Solve for x
    x = 26,495,715,963.42/161,568.60
  6. Step 6: Final answer
    x = 163,990.50

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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.