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Finding the Fourth Proportional to 108,780.52, 150,119.73 and 61,037.40

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Solution

The fourth proportional to 108,780.52, 150,119.73 and 61,037.40 is: 84,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.52 : 150,119.73 = 61,037.40 : x
  2. Step 2: Convert to fraction form
    108,780.52/150,119.73 = 61,037.40/x
  3. Step 3: Cross multiply
    108,780.52x = 150,119.73 × 61,037.40
  4. Step 4: Simplify right side
    108,780.52x = 9,162,917,726.43
  5. Step 5: Solve for x
    x = 9,162,917,726.43/108,780.52
  6. Step 6: Final answer
    x = 84,233.08

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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.