Home / 108,565.48-149,812.26-66,117.16

Finding the Fourth Proportional to 108,565.48, 149,812.26 and 66,117.16

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Solution

The fourth proportional to 108,565.48, 149,812.26 and 66,117.16 is: 91,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,565.48 : 149,812.26 = 66,117.16 : x
  2. Step 2: Convert to fraction form
    108,565.48/149,812.26 = 66,117.16/x
  3. Step 3: Cross multiply
    108,565.48x = 149,812.26 × 66,117.16
  4. Step 4: Simplify right side
    108,565.48x = 9,905,161,164.38
  5. Step 5: Solve for x
    x = 9,905,161,164.38/108,565.48
  6. Step 6: Final answer
    x = 91,236.75

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Double scale
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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.