Home / 130,535.34-180,135.27-76,823.52

Finding the Fourth Proportional to 130,535.34, 180,135.27 and 76,823.52

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Solution

The fourth proportional to 130,535.34, 180,135.27 and 76,823.52 is: 106,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,535.34 : 180,135.27 = 76,823.52 : x
  2. Step 2: Convert to fraction form
    130,535.34/180,135.27 = 76,823.52/x
  3. Step 3: Cross multiply
    130,535.34x = 180,135.27 × 76,823.52
  4. Step 4: Simplify right side
    130,535.34x = 13,838,625,517.55
  5. Step 5: Solve for x
    x = 13,838,625,517.55/130,535.34
  6. Step 6: Final answer
    x = 106,014.40

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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.