Home / 130,397.28-180,058.56-82,735.20

Finding the Fourth Proportional to 130,397.28, 180,058.56 and 82,735.20

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Solution

The fourth proportional to 130,397.28, 180,058.56 and 82,735.20 is: 114,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,397.28 : 180,058.56 = 82,735.20 : x
  2. Step 2: Convert to fraction form
    130,397.28/180,058.56 = 82,735.20/x
  3. Step 3: Cross multiply
    130,397.28x = 180,058.56 × 82,735.20
  4. Step 4: Simplify right side
    130,397.28x = 14,897,180,973.31
  5. Step 5: Solve for x
    x = 14,897,180,973.31/130,397.28
  6. Step 6: Final answer
    x = 114,244.57

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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.