Home / 172,512.11-258,686.28-60,178.68

Finding the Fourth Proportional to 172,512.11, 258,686.28 and 60,178.68

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Solution

The fourth proportional to 172,512.11, 258,686.28 and 60,178.68 is: 90,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,512.11 : 258,686.28 = 60,178.68 : x
  2. Step 2: Convert to fraction form
    172,512.11/258,686.28 = 60,178.68/x
  3. Step 3: Cross multiply
    172,512.11x = 258,686.28 × 60,178.68
  4. Step 4: Simplify right side
    172,512.11x = 15,567,398,864.51
  5. Step 5: Solve for x
    x = 15,567,398,864.51/172,512.11
  6. Step 6: Final answer
    x = 90,239.45

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1.5x scale

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.