Home / 156,966.46-216,607.74-85,346.54

Finding the Fourth Proportional to 156,966.46, 216,607.74 and 85,346.54

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Solution

The fourth proportional to 156,966.46, 216,607.74 and 85,346.54 is: 117,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.46 : 216,607.74 = 85,346.54 : x
  2. Step 2: Convert to fraction form
    156,966.46/216,607.74 = 85,346.54/x
  3. Step 3: Cross multiply
    156,966.46x = 216,607.74 × 85,346.54
  4. Step 4: Simplify right side
    156,966.46x = 18,486,721,146.22
  5. Step 5: Solve for x
    x = 18,486,721,146.22/156,966.46
  6. Step 6: Final answer
    x = 117,774.98

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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.