Home / 130,947.63-180,707.72-71,331.63

Finding the Fourth Proportional to 130,947.63, 180,707.72 and 71,331.63

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Solution

The fourth proportional to 130,947.63, 180,707.72 and 71,331.63 is: 98,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,947.63 : 180,707.72 = 71,331.63 : x
  2. Step 2: Convert to fraction form
    130,947.63/180,707.72 = 71,331.63/x
  3. Step 3: Cross multiply
    130,947.63x = 180,707.72 × 71,331.63
  4. Step 4: Simplify right side
    130,947.63x = 12,890,176,221.18
  5. Step 5: Solve for x
    x = 12,890,176,221.18/130,947.63
  6. Step 6: Final answer
    x = 98,437.64

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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.