Home / 121,165.02-181,764.81-38,065.50

Finding the Fourth Proportional to 121,165.02, 181,764.81 and 38,065.50

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Solution

The fourth proportional to 121,165.02, 181,764.81 and 38,065.50 is: 57,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,165.02 : 181,764.81 = 38,065.50 : x
  2. Step 2: Convert to fraction form
    121,165.02/181,764.81 = 38,065.50/x
  3. Step 3: Cross multiply
    121,165.02x = 181,764.81 × 38,065.50
  4. Step 4: Simplify right side
    121,165.02x = 6,918,968,375.06
  5. Step 5: Solve for x
    x = 6,918,968,375.06/121,165.02
  6. Step 6: Final answer
    x = 57,103.68

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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.