Home / 155,158.33-214,125.10-87,175.43

Finding the Fourth Proportional to 155,158.33, 214,125.10 and 87,175.43

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Solution

The fourth proportional to 155,158.33, 214,125.10 and 87,175.43 is: 120,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,158.33 : 214,125.10 = 87,175.43 : x
  2. Step 2: Convert to fraction form
    155,158.33/214,125.10 = 87,175.43/x
  3. Step 3: Cross multiply
    155,158.33x = 214,125.10 × 87,175.43
  4. Step 4: Simplify right side
    155,158.33x = 18,666,447,666.29
  5. Step 5: Solve for x
    x = 18,666,447,666.29/155,158.33
  6. Step 6: Final answer
    x = 120,305.81

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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.