Home / 130,859.50-180,586.12-71,243.50

Finding the Fourth Proportional to 130,859.50, 180,586.12 and 71,243.50

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Solution

The fourth proportional to 130,859.50, 180,586.12 and 71,243.50 is: 98,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,859.50 : 180,586.12 = 71,243.50 : x
  2. Step 2: Convert to fraction form
    130,859.50/180,586.12 = 71,243.50/x
  3. Step 3: Cross multiply
    130,859.50x = 180,586.12 × 71,243.50
  4. Step 4: Simplify right side
    130,859.50x = 12,865,587,240.22
  5. Step 5: Solve for x
    x = 12,865,587,240.22/130,859.50
  6. Step 6: Final answer
    x = 98,316.04

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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.