Home / 130,508.06-180,096.31-70,890.78

Finding the Fourth Proportional to 130,508.06, 180,096.31 and 70,890.78

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Solution

The fourth proportional to 130,508.06, 180,096.31 and 70,890.78 is: 97,826.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,508.06 : 180,096.31 = 70,890.78 : x
  2. Step 2: Convert to fraction form
    130,508.06/180,096.31 = 70,890.78/x
  3. Step 3: Cross multiply
    130,508.06x = 180,096.31 × 70,890.78
  4. Step 4: Simplify right side
    130,508.06x = 12,767,167,891.02
  5. Step 5: Solve for x
    x = 12,767,167,891.02/130,508.06
  6. Step 6: Final answer
    x = 97,826.66

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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.