Home / 130,581.27-180,257.31-88,197.21

Finding the Fourth Proportional to 130,581.27, 180,257.31 and 88,197.21

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Solution

The fourth proportional to 130,581.27, 180,257.31 and 88,197.21 is: 121,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,581.27 : 180,257.31 = 88,197.21 : x
  2. Step 2: Convert to fraction form
    130,581.27/180,257.31 = 88,197.21/x
  3. Step 3: Cross multiply
    130,581.27x = 180,257.31 × 88,197.21
  4. Step 4: Simplify right side
    130,581.27x = 15,898,191,824.11
  5. Step 5: Solve for x
    x = 15,898,191,824.11/130,581.27
  6. Step 6: Final answer
    x = 121,749.40

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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.