Home / 130,925.28-180,676.86-71,309.28

Finding the Fourth Proportional to 130,925.28, 180,676.86 and 71,309.28

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Solution

The fourth proportional to 130,925.28, 180,676.86 and 71,309.28 is: 98,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,925.28 : 180,676.86 = 71,309.28 : x
  2. Step 2: Convert to fraction form
    130,925.28/180,676.86 = 71,309.28/x
  3. Step 3: Cross multiply
    130,925.28x = 180,676.86 × 71,309.28
  4. Step 4: Simplify right side
    130,925.28x = 12,883,936,799.26
  5. Step 5: Solve for x
    x = 12,883,936,799.26/130,925.28
  6. Step 6: Final answer
    x = 98,406.79

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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.