Home / 172,415.04-258,632.28-54,083.76

Finding the Fourth Proportional to 172,415.04, 258,632.28 and 54,083.76

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Solution

The fourth proportional to 172,415.04, 258,632.28 and 54,083.76 is: 81,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,415.04 : 258,632.28 = 54,083.76 : x
  2. Step 2: Convert to fraction form
    172,415.04/258,632.28 = 54,083.76/x
  3. Step 3: Cross multiply
    172,415.04x = 258,632.28 × 54,083.76
  4. Step 4: Simplify right side
    172,415.04x = 13,987,806,159.77
  5. Step 5: Solve for x
    x = 13,987,806,159.77/172,415.04
  6. Step 6: Final answer
    x = 81,128.69

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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.