Home / 162,785.40-224,633.16-91,149

Finding the Fourth Proportional to 162,785.40, 224,633.16 and 91,149

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Solution

The fourth proportional to 162,785.40, 224,633.16 and 91,149 is: 125,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,785.40 : 224,633.16 = 91,149 : x
  2. Step 2: Convert to fraction form
    162,785.40/224,633.16 = 91,149/x
  3. Step 3: Cross multiply
    162,785.40x = 224,633.16 × 91,149
  4. Step 4: Simplify right side
    162,785.40x = 20,475,087,900.84
  5. Step 5: Solve for x
    x = 20,475,087,900.84/162,785.40
  6. Step 6: Final answer
    x = 125,779.63

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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.