Home / 107,218.16-147,864.16-66,935.60

Finding the Fourth Proportional to 107,218.16, 147,864.16 and 66,935.60

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Solution

The fourth proportional to 107,218.16, 147,864.16 and 66,935.60 is: 92,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,218.16 : 147,864.16 = 66,935.60 : x
  2. Step 2: Convert to fraction form
    107,218.16/147,864.16 = 66,935.60/x
  3. Step 3: Cross multiply
    107,218.16x = 147,864.16 × 66,935.60
  4. Step 4: Simplify right side
    107,218.16x = 9,897,376,268.10
  5. Step 5: Solve for x
    x = 9,897,376,268.10/107,218.16
  6. Step 6: Final answer
    x = 92,310.63

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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.