Home / 155,128.64-214,077.40-88,060.64

Finding the Fourth Proportional to 155,128.64, 214,077.40 and 88,060.64

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Solution

The fourth proportional to 155,128.64, 214,077.40 and 88,060.64 is: 121,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,128.64 : 214,077.40 = 88,060.64 : x
  2. Step 2: Convert to fraction form
    155,128.64/214,077.40 = 88,060.64/x
  3. Step 3: Cross multiply
    155,128.64x = 214,077.40 × 88,060.64
  4. Step 4: Simplify right side
    155,128.64x = 18,851,791,563.00
  5. Step 5: Solve for x
    x = 18,851,791,563.00/155,128.64
  6. Step 6: Final answer
    x = 121,523.61

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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.