Home / 130,947.04-180,706.96-71,331.04

Finding the Fourth Proportional to 130,947.04, 180,706.96 and 71,331.04

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Solution

The fourth proportional to 130,947.04, 180,706.96 and 71,331.04 is: 98,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,947.04 : 180,706.96 = 71,331.04 : x
  2. Step 2: Convert to fraction form
    130,947.04/180,706.96 = 71,331.04/x
  3. Step 3: Cross multiply
    130,947.04x = 180,706.96 × 71,331.04
  4. Step 4: Simplify right side
    130,947.04x = 12,890,015,392.04
  5. Step 5: Solve for x
    x = 12,890,015,392.04/130,947.04
  6. Step 6: Final answer
    x = 98,436.86

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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.