Home / 107,108.27-147,775.64-61,780.18

Finding the Fourth Proportional to 107,108.27, 147,775.64 and 61,780.18

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Solution

The fourth proportional to 107,108.27, 147,775.64 and 61,780.18 is: 85,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,108.27 : 147,775.64 = 61,780.18 : x
  2. Step 2: Convert to fraction form
    107,108.27/147,775.64 = 61,780.18/x
  3. Step 3: Cross multiply
    107,108.27x = 147,775.64 × 61,780.18
  4. Step 4: Simplify right side
    107,108.27x = 9,129,604,591.04
  5. Step 5: Solve for x
    x = 9,129,604,591.04/107,108.27
  6. Step 6: Final answer
    x = 85,237.16

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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.