Home / 124,975.80-172,798.38-109,229.40

Finding the Fourth Proportional to 124,975.80, 172,798.38 and 109,229.40

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Solution

The fourth proportional to 124,975.80, 172,798.38 and 109,229.40 is: 151,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,975.80 : 172,798.38 = 109,229.40 : x
  2. Step 2: Convert to fraction form
    124,975.80/172,798.38 = 109,229.40/x
  3. Step 3: Cross multiply
    124,975.80x = 172,798.38 × 109,229.40
  4. Step 4: Simplify right side
    124,975.80x = 18,874,663,368.37
  5. Step 5: Solve for x
    x = 18,874,663,368.37/124,975.80
  6. Step 6: Final answer
    x = 151,026.55

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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.