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Finding the Fourth Proportional to 156,445.01, 215,880.77 and 88,458.65

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Solution

The fourth proportional to 156,445.01, 215,880.77 and 88,458.65 is: 122,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,445.01 : 215,880.77 = 88,458.65 : x
  2. Step 2: Convert to fraction form
    156,445.01/215,880.77 = 88,458.65/x
  3. Step 3: Cross multiply
    156,445.01x = 215,880.77 × 88,458.65
  4. Step 4: Simplify right side
    156,445.01x = 19,096,521,032.87
  5. Step 5: Solve for x
    x = 19,096,521,032.87/156,445.01
  6. Step 6: Final answer
    x = 122,065.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.