Home / 123,002.70-169,837.20-121,041.60

Finding the Fourth Proportional to 123,002.70, 169,837.20 and 121,041.60

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Solution

The fourth proportional to 123,002.70, 169,837.20 and 121,041.60 is: 167,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,002.70 : 169,837.20 = 121,041.60 : x
  2. Step 2: Convert to fraction form
    123,002.70/169,837.20 = 121,041.60/x
  3. Step 3: Cross multiply
    123,002.70x = 169,837.20 × 121,041.60
  4. Step 4: Simplify right side
    123,002.70x = 20,557,366,427.52
  5. Step 5: Solve for x
    x = 20,557,366,427.52/123,002.70
  6. Step 6: Final answer
    x = 167,129.39

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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.