Home / 172,948.16-238,674.40-100,345.57

Finding the Fourth Proportional to 172,948.16, 238,674.40 and 100,345.57

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Solution

The fourth proportional to 172,948.16, 238,674.40 and 100,345.57 is: 138,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,948.16 : 238,674.40 = 100,345.57 : x
  2. Step 2: Convert to fraction form
    172,948.16/238,674.40 = 100,345.57/x
  3. Step 3: Cross multiply
    172,948.16x = 238,674.40 × 100,345.57
  4. Step 4: Simplify right side
    172,948.16x = 23,949,917,864.86
  5. Step 5: Solve for x
    x = 23,949,917,864.86/172,948.16
  6. Step 6: Final answer
    x = 138,480.33

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1.5x scale

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.