Home / 130,036.38-195,116.40-90,116.75

Finding the Fourth Proportional to 130,036.38, 195,116.40 and 90,116.75

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Solution

The fourth proportional to 130,036.38, 195,116.40 and 90,116.75 is: 135,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,036.38 : 195,116.40 = 90,116.75 : x
  2. Step 2: Convert to fraction form
    130,036.38/195,116.40 = 90,116.75/x
  3. Step 3: Cross multiply
    130,036.38x = 195,116.40 × 90,116.75
  4. Step 4: Simplify right side
    130,036.38x = 17,583,254,864.12
  5. Step 5: Solve for x
    x = 17,583,254,864.12/130,036.38
  6. Step 6: Final answer
    x = 135,217.97

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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.