Home / 345,722.03-518,463.11-121,077.51

Finding the Fourth Proportional to 345,722.03, 518,463.11 and 121,077.51

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Solution

The fourth proportional to 345,722.03, 518,463.11 and 121,077.51 is: 181,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,722.03 : 518,463.11 = 121,077.51 : x
  2. Step 2: Convert to fraction form
    345,722.03/518,463.11 = 121,077.51/x
  3. Step 3: Cross multiply
    345,722.03x = 518,463.11 × 121,077.51
  4. Step 4: Simplify right side
    345,722.03x = 62,774,222,385.66
  5. Step 5: Solve for x
    x = 62,774,222,385.66/345,722.03
  6. Step 6: Final answer
    x = 181,574.26

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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.