Home / 130,610.82-180,245.07-74,020.98

Finding the Fourth Proportional to 130,610.82, 180,245.07 and 74,020.98

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Solution

The fourth proportional to 130,610.82, 180,245.07 and 74,020.98 is: 102,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,610.82 : 180,245.07 = 74,020.98 : x
  2. Step 2: Convert to fraction form
    130,610.82/180,245.07 = 74,020.98/x
  3. Step 3: Cross multiply
    130,610.82x = 180,245.07 × 74,020.98
  4. Step 4: Simplify right side
    130,610.82x = 13,341,916,721.57
  5. Step 5: Solve for x
    x = 13,341,916,721.57/130,610.82
  6. Step 6: Final answer
    x = 102,150.16

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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.