Home / 172,256.13-258,436.67-88,075.35

Finding the Fourth Proportional to 172,256.13, 258,436.67 and 88,075.35

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Solution

The fourth proportional to 172,256.13, 258,436.67 and 88,075.35 is: 132,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,256.13 : 258,436.67 = 88,075.35 : x
  2. Step 2: Convert to fraction form
    172,256.13/258,436.67 = 88,075.35/x
  3. Step 3: Cross multiply
    172,256.13x = 258,436.67 × 88,075.35
  4. Step 4: Simplify right side
    172,256.13x = 22,761,899,722.71
  5. Step 5: Solve for x
    x = 22,761,899,722.71/172,256.13
  6. Step 6: Final answer
    x = 132,139.85

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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.