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Finding the Fourth Proportional to 104,063.31, 156,031.75 and 40,807.65

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Solution

The fourth proportional to 104,063.31, 156,031.75 and 40,807.65 is: 61,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,063.31 : 156,031.75 = 40,807.65 : x
  2. Step 2: Convert to fraction form
    104,063.31/156,031.75 = 40,807.65/x
  3. Step 3: Cross multiply
    104,063.31x = 156,031.75 × 40,807.65
  4. Step 4: Simplify right side
    104,063.31x = 6,367,289,042.89
  5. Step 5: Solve for x
    x = 6,367,289,042.89/104,063.31
  6. Step 6: Final answer
    x = 61,186.69

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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.