Home / 121,123.10-181,356.60-94,879.10

Finding the Fourth Proportional to 121,123.10, 181,356.60 and 94,879.10

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Solution

The fourth proportional to 121,123.10, 181,356.60 and 94,879.10 is: 142,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.10 : 181,356.60 = 94,879.10 : x
  2. Step 2: Convert to fraction form
    121,123.10/181,356.60 = 94,879.10/x
  3. Step 3: Cross multiply
    121,123.10x = 181,356.60 × 94,879.10
  4. Step 4: Simplify right side
    121,123.10x = 17,206,950,987.06
  5. Step 5: Solve for x
    x = 17,206,950,987.06/121,123.10
  6. Step 6: Final answer
    x = 142,061.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.