Home / 199,800.09-275,803.03-123,350.10

Finding the Fourth Proportional to 199,800.09, 275,803.03 and 123,350.10

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Solution

The fourth proportional to 199,800.09, 275,803.03 and 123,350.10 is: 170,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,800.09 : 275,803.03 = 123,350.10 : x
  2. Step 2: Convert to fraction form
    199,800.09/275,803.03 = 123,350.10/x
  3. Step 3: Cross multiply
    199,800.09x = 275,803.03 × 123,350.10
  4. Step 4: Simplify right side
    199,800.09x = 34,020,331,330.80
  5. Step 5: Solve for x
    x = 34,020,331,330.80/199,800.09
  6. Step 6: Final answer
    x = 170,271.85

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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.