Home / 120,062.18-165,681.35-66,346.08

Finding the Fourth Proportional to 120,062.18, 165,681.35 and 66,346.08

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Solution

The fourth proportional to 120,062.18, 165,681.35 and 66,346.08 is: 91,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,062.18 : 165,681.35 = 66,346.08 : x
  2. Step 2: Convert to fraction form
    120,062.18/165,681.35 = 66,346.08/x
  3. Step 3: Cross multiply
    120,062.18x = 165,681.35 × 66,346.08
  4. Step 4: Simplify right side
    120,062.18x = 10,992,308,101.61
  5. Step 5: Solve for x
    x = 10,992,308,101.61/120,062.18
  6. Step 6: Final answer
    x = 91,555.13

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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.