Home / 155,368.96-214,444.56-109,999.78

Finding the Fourth Proportional to 155,368.96, 214,444.56 and 109,999.78

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Solution

The fourth proportional to 155,368.96, 214,444.56 and 109,999.78 is: 151,824.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368.96 : 214,444.56 = 109,999.78 : x
  2. Step 2: Convert to fraction form
    155,368.96/214,444.56 = 109,999.78/x
  3. Step 3: Cross multiply
    155,368.96x = 214,444.56 × 109,999.78
  4. Step 4: Simplify right side
    155,368.96x = 23,588,854,422.20
  5. Step 5: Solve for x
    x = 23,588,854,422.20/155,368.96
  6. Step 6: Final answer
    x = 151,824.76

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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.