Home / 156,968.65-216,610.81-85,346.20

Finding the Fourth Proportional to 156,968.65, 216,610.81 and 85,346.20

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Solution

The fourth proportional to 156,968.65, 216,610.81 and 85,346.20 is: 117,774.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.65 : 216,610.81 = 85,346.20 : x
  2. Step 2: Convert to fraction form
    156,968.65/216,610.81 = 85,346.20/x
  3. Step 3: Cross multiply
    156,968.65x = 216,610.81 × 85,346.20
  4. Step 4: Simplify right side
    156,968.65x = 18,486,909,512.42
  5. Step 5: Solve for x
    x = 18,486,909,512.42/156,968.65
  6. Step 6: Final answer
    x = 117,774.53

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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.