Home / 155,680.80-214,753.08-102,052.32

Finding the Fourth Proportional to 155,680.80, 214,753.08 and 102,052.32

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Solution

The fourth proportional to 155,680.80, 214,753.08 and 102,052.32 is: 140,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,680.80 : 214,753.08 = 102,052.32 : x
  2. Step 2: Convert to fraction form
    155,680.80/214,753.08 = 102,052.32/x
  3. Step 3: Cross multiply
    155,680.80x = 214,753.08 × 102,052.32
  4. Step 4: Simplify right side
    155,680.80x = 21,916,050,041.15
  5. Step 5: Solve for x
    x = 21,916,050,041.15/155,680.80
  6. Step 6: Final answer
    x = 140,775.55

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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.