Home / 124,804.45-172,261.10-71,121.31

Finding the Fourth Proportional to 124,804.45, 172,261.10 and 71,121.31

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Solution

The fourth proportional to 124,804.45, 172,261.10 and 71,121.31 is: 98,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,804.45 : 172,261.10 = 71,121.31 : x
  2. Step 2: Convert to fraction form
    124,804.45/172,261.10 = 71,121.31/x
  3. Step 3: Cross multiply
    124,804.45x = 172,261.10 × 71,121.31
  4. Step 4: Simplify right side
    124,804.45x = 12,251,435,094.04
  5. Step 5: Solve for x
    x = 12,251,435,094.04/124,804.45
  6. Step 6: Final answer
    x = 98,165.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.