Home / 121,032.68-181,491.42-42,137.24

Finding the Fourth Proportional to 121,032.68, 181,491.42 and 42,137.24

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Solution

The fourth proportional to 121,032.68, 181,491.42 and 42,137.24 is: 63,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,032.68 : 181,491.42 = 42,137.24 : x
  2. Step 2: Convert to fraction form
    121,032.68/181,491.42 = 42,137.24/x
  3. Step 3: Cross multiply
    121,032.68x = 181,491.42 × 42,137.24
  4. Step 4: Simplify right side
    121,032.68x = 7,647,547,522.48
  5. Step 5: Solve for x
    x = 7,647,547,522.48/121,032.68
  6. Step 6: Final answer
    x = 63,185.81

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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.