Home / 130,439.52-180,001.40-73,850.90

Finding the Fourth Proportional to 130,439.52, 180,001.40 and 73,850.90

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Solution

The fourth proportional to 130,439.52, 180,001.40 and 73,850.90 is: 101,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,439.52 : 180,001.40 = 73,850.90 : x
  2. Step 2: Convert to fraction form
    130,439.52/180,001.40 = 73,850.90/x
  3. Step 3: Cross multiply
    130,439.52x = 180,001.40 × 73,850.90
  4. Step 4: Simplify right side
    130,439.52x = 13,293,265,391.26
  5. Step 5: Solve for x
    x = 13,293,265,391.26/130,439.52
  6. Step 6: Final answer
    x = 101,911.33

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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.