Home / 113,360.95-156,439.43-64,961.92

Finding the Fourth Proportional to 113,360.95, 156,439.43 and 64,961.92

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Solution

The fourth proportional to 113,360.95, 156,439.43 and 64,961.92 is: 89,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,360.95 : 156,439.43 = 64,961.92 : x
  2. Step 2: Convert to fraction form
    113,360.95/156,439.43 = 64,961.92/x
  3. Step 3: Cross multiply
    113,360.95x = 156,439.43 × 64,961.92
  4. Step 4: Simplify right side
    113,360.95x = 10,162,605,736.51
  5. Step 5: Solve for x
    x = 10,162,605,736.51/113,360.95
  6. Step 6: Final answer
    x = 89,648.21

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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.