Home / 121,052.90-181,578.12-31,095.11

Finding the Fourth Proportional to 121,052.90, 181,578.12 and 31,095.11

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Solution

The fourth proportional to 121,052.90, 181,578.12 and 31,095.11 is: 46,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,052.90 : 181,578.12 = 31,095.11 : x
  2. Step 2: Convert to fraction form
    121,052.90/181,578.12 = 31,095.11/x
  3. Step 3: Cross multiply
    121,052.90x = 181,578.12 × 31,095.11
  4. Step 4: Simplify right side
    121,052.90x = 5,646,190,707.10
  5. Step 5: Solve for x
    x = 5,646,190,707.10/121,052.90
  6. Step 6: Final answer
    x = 46,642.34

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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.