Home / 121,001.10-181,696.05-91,452.30

Finding the Fourth Proportional to 121,001.10, 181,696.05 and 91,452.30

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Solution

The fourth proportional to 121,001.10, 181,696.05 and 91,452.30 is: 137,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,001.10 : 181,696.05 = 91,452.30 : x
  2. Step 2: Convert to fraction form
    121,001.10/181,696.05 = 91,452.30/x
  3. Step 3: Cross multiply
    121,001.10x = 181,696.05 × 91,452.30
  4. Step 4: Simplify right side
    121,001.10x = 16,616,521,673.42
  5. Step 5: Solve for x
    x = 16,616,521,673.42/121,001.10
  6. Step 6: Final answer
    x = 137,325.38

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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.