Home / 108,930.77-150,341.15-66,514.13

Finding the Fourth Proportional to 108,930.77, 150,341.15 and 66,514.13

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Solution

The fourth proportional to 108,930.77, 150,341.15 and 66,514.13 is: 91,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,930.77 : 150,341.15 = 66,514.13 : x
  2. Step 2: Convert to fraction form
    108,930.77/150,341.15 = 66,514.13/x
  3. Step 3: Cross multiply
    108,930.77x = 150,341.15 × 66,514.13
  4. Step 4: Simplify right side
    108,930.77x = 9,999,810,419.60
  5. Step 5: Solve for x
    x = 9,999,810,419.60/108,930.77
  6. Step 6: Final answer
    x = 91,799.69

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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.