Home / 107,012.66-147,679.02-61,689.82

Finding the Fourth Proportional to 107,012.66, 147,679.02 and 61,689.82

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Solution

The fourth proportional to 107,012.66, 147,679.02 and 61,689.82 is: 85,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,012.66 : 147,679.02 = 61,689.82 : x
  2. Step 2: Convert to fraction form
    107,012.66/147,679.02 = 61,689.82/x
  3. Step 3: Cross multiply
    107,012.66x = 147,679.02 × 61,689.82
  4. Step 4: Simplify right side
    107,012.66x = 9,110,292,161.58
  5. Step 5: Solve for x
    x = 9,110,292,161.58/107,012.66
  6. Step 6: Final answer
    x = 85,132.84

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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.