Home / 130,531.70-180,041.58-111,100.97

Finding the Fourth Proportional to 130,531.70, 180,041.58 and 111,100.97

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Solution

The fourth proportional to 130,531.70, 180,041.58 and 111,100.97 is: 153,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,531.70 : 180,041.58 = 111,100.97 : x
  2. Step 2: Convert to fraction form
    130,531.70/180,041.58 = 111,100.97/x
  3. Step 3: Cross multiply
    130,531.70x = 180,041.58 × 111,100.97
  4. Step 4: Simplify right side
    130,531.70x = 20,002,793,278.12
  5. Step 5: Solve for x
    x = 20,002,793,278.12/130,531.70
  6. Step 6: Final answer
    x = 153,240.89

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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.