Home / 130,943.04-180,769.68-101,806.80

Finding the Fourth Proportional to 130,943.04, 180,769.68 and 101,806.80

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Solution

The fourth proportional to 130,943.04, 180,769.68 and 101,806.80 is: 140,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.04 : 180,769.68 = 101,806.80 : x
  2. Step 2: Convert to fraction form
    130,943.04/180,769.68 = 101,806.80/x
  3. Step 3: Cross multiply
    130,943.04x = 180,769.68 × 101,806.80
  4. Step 4: Simplify right side
    130,943.04x = 18,403,582,657.82
  5. Step 5: Solve for x
    x = 18,403,582,657.82/130,943.04
  6. Step 6: Final answer
    x = 140,546.47

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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.