Home / 155,888.75-214,983.01-102,154.25

Finding the Fourth Proportional to 155,888.75, 214,983.01 and 102,154.25

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Solution

The fourth proportional to 155,888.75, 214,983.01 and 102,154.25 is: 140,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,888.75 : 214,983.01 = 102,154.25 : x
  2. Step 2: Convert to fraction form
    155,888.75/214,983.01 = 102,154.25/x
  3. Step 3: Cross multiply
    155,888.75x = 214,983.01 × 102,154.25
  4. Step 4: Simplify right side
    155,888.75x = 21,961,428,814.44
  5. Step 5: Solve for x
    x = 21,961,428,814.44/155,888.75
  6. Step 6: Final answer
    x = 140,878.85

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1.5x scale

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.