Home / 130,561.50-180,182.16-73,991.10

Finding the Fourth Proportional to 130,561.50, 180,182.16 and 73,991.10

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Solution

The fourth proportional to 130,561.50, 180,182.16 and 73,991.10 is: 102,111.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,561.50 : 180,182.16 = 73,991.10 : x
  2. Step 2: Convert to fraction form
    130,561.50/180,182.16 = 73,991.10/x
  3. Step 3: Cross multiply
    130,561.50x = 180,182.16 × 73,991.10
  4. Step 4: Simplify right side
    130,561.50x = 13,331,876,218.78
  5. Step 5: Solve for x
    x = 13,331,876,218.78/130,561.50
  6. Step 6: Final answer
    x = 102,111.85

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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.