Home / 103,689.38-155,284.92-59,181.21

Finding the Fourth Proportional to 103,689.38, 155,284.92 and 59,181.21

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Solution

The fourth proportional to 103,689.38, 155,284.92 and 59,181.21 is: 88,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.38 : 155,284.92 = 59,181.21 : x
  2. Step 2: Convert to fraction form
    103,689.38/155,284.92 = 59,181.21/x
  3. Step 3: Cross multiply
    103,689.38x = 155,284.92 × 59,181.21
  4. Step 4: Simplify right side
    103,689.38x = 9,189,949,460.35
  5. Step 5: Solve for x
    x = 9,189,949,460.35/103,689.38
  6. Step 6: Final answer
    x = 88,629.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.