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Finding the Fourth Proportional to 191,108.10, 286,662.15 and 72,834.18

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Solution

The fourth proportional to 191,108.10, 286,662.15 and 72,834.18 is: 109,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,108.10 : 286,662.15 = 72,834.18 : x
  2. Step 2: Convert to fraction form
    191,108.10/286,662.15 = 72,834.18/x
  3. Step 3: Cross multiply
    191,108.10x = 286,662.15 × 72,834.18
  4. Step 4: Simplify right side
    191,108.10x = 20,878,802,632.29
  5. Step 5: Solve for x
    x = 20,878,802,632.29/191,108.10
  6. Step 6: Final answer
    x = 109,251.27

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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.