Home / 110,726.20-165,743.70-87,225.40

Finding the Fourth Proportional to 110,726.20, 165,743.70 and 87,225.40

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Solution

The fourth proportional to 110,726.20, 165,743.70 and 87,225.40 is: 130,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,726.20 : 165,743.70 = 87,225.40 : x
  2. Step 2: Convert to fraction form
    110,726.20/165,743.70 = 87,225.40/x
  3. Step 3: Cross multiply
    110,726.20x = 165,743.70 × 87,225.40
  4. Step 4: Simplify right side
    110,726.20x = 14,457,060,529.98
  5. Step 5: Solve for x
    x = 14,457,060,529.98/110,726.20
  6. Step 6: Final answer
    x = 130,565.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.