Home / 120,732.95-181,288.98-102,255.23

Finding the Fourth Proportional to 120,732.95, 181,288.98 and 102,255.23

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Solution

The fourth proportional to 120,732.95, 181,288.98 and 102,255.23 is: 153,543.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,732.95 : 181,288.98 = 102,255.23 : x
  2. Step 2: Convert to fraction form
    120,732.95/181,288.98 = 102,255.23/x
  3. Step 3: Cross multiply
    120,732.95x = 181,288.98 × 102,255.23
  4. Step 4: Simplify right side
    120,732.95x = 18,537,746,346.37
  5. Step 5: Solve for x
    x = 18,537,746,346.37/120,732.95
  6. Step 6: Final answer
    x = 153,543.39

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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.