Home / 116,648.02-160,847.13-78,856.66

Finding the Fourth Proportional to 116,648.02, 160,847.13 and 78,856.66

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Solution

The fourth proportional to 116,648.02, 160,847.13 and 78,856.66 is: 108,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,648.02 : 160,847.13 = 78,856.66 : x
  2. Step 2: Convert to fraction form
    116,648.02/160,847.13 = 78,856.66/x
  3. Step 3: Cross multiply
    116,648.02x = 160,847.13 × 78,856.66
  4. Step 4: Simplify right side
    116,648.02x = 12,683,867,442.39
  5. Step 5: Solve for x
    x = 12,683,867,442.39/116,648.02
  6. Step 6: Final answer
    x = 108,736.24

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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.