Home / 121,202.64-181,743.09-70,618.03

Finding the Fourth Proportional to 121,202.64, 181,743.09 and 70,618.03

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Solution

The fourth proportional to 121,202.64, 181,743.09 and 70,618.03 is: 105,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,202.64 : 181,743.09 = 70,618.03 : x
  2. Step 2: Convert to fraction form
    121,202.64/181,743.09 = 70,618.03/x
  3. Step 3: Cross multiply
    121,202.64x = 181,743.09 × 70,618.03
  4. Step 4: Simplify right side
    121,202.64x = 12,834,338,981.91
  5. Step 5: Solve for x
    x = 12,834,338,981.91/121,202.64
  6. Step 6: Final answer
    x = 105,891.58

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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.