Home / 135,454.08-186,873.20-84,437.04

Finding the Fourth Proportional to 135,454.08, 186,873.20 and 84,437.04

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Solution

The fourth proportional to 135,454.08, 186,873.20 and 84,437.04 is: 116,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,454.08 : 186,873.20 = 84,437.04 : x
  2. Step 2: Convert to fraction form
    135,454.08/186,873.20 = 84,437.04/x
  3. Step 3: Cross multiply
    135,454.08x = 186,873.20 × 84,437.04
  4. Step 4: Simplify right side
    135,454.08x = 15,779,019,863.33
  5. Step 5: Solve for x
    x = 15,779,019,863.33/135,454.08
  6. Step 6: Final answer
    x = 116,489.81

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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.