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Finding the Fourth Proportional to 100,301.34, 138,411 and 60,037.32

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Solution

The fourth proportional to 100,301.34, 138,411 and 60,037.32 is: 82,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,301.34 : 138,411 = 60,037.32 : x
  2. Step 2: Convert to fraction form
    100,301.34/138,411 = 60,037.32/x
  3. Step 3: Cross multiply
    100,301.34x = 138,411 × 60,037.32
  4. Step 4: Simplify right side
    100,301.34x = 8,309,825,498.52
  5. Step 5: Solve for x
    x = 8,309,825,498.52/100,301.34
  6. Step 6: Final answer
    x = 82,848.60

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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.