Home / 130,689.28-180,323.34-76,954.66

Finding the Fourth Proportional to 130,689.28, 180,323.34 and 76,954.66

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Solution

The fourth proportional to 130,689.28, 180,323.34 and 76,954.66 is: 106,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,689.28 : 180,323.34 = 76,954.66 : x
  2. Step 2: Convert to fraction form
    130,689.28/180,323.34 = 76,954.66/x
  3. Step 3: Cross multiply
    130,689.28x = 180,323.34 × 76,954.66
  4. Step 4: Simplify right side
    130,689.28x = 13,876,721,319.76
  5. Step 5: Solve for x
    x = 13,876,721,319.76/130,689.28
  6. Step 6: Final answer
    x = 106,181.02

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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.