Home / 130,242.22-179,741.80-72,881.04

Finding the Fourth Proportional to 130,242.22, 179,741.80 and 72,881.04

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Solution

The fourth proportional to 130,242.22, 179,741.80 and 72,881.04 is: 100,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,242.22 : 179,741.80 = 72,881.04 : x
  2. Step 2: Convert to fraction form
    130,242.22/179,741.80 = 72,881.04/x
  3. Step 3: Cross multiply
    130,242.22x = 179,741.80 × 72,881.04
  4. Step 4: Simplify right side
    130,242.22x = 13,099,768,951.07
  5. Step 5: Solve for x
    x = 13,099,768,951.07/130,242.22
  6. Step 6: Final answer
    x = 100,580.05

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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.