Home / 140,920.06-211,360.64-77,856.70

Finding the Fourth Proportional to 140,920.06, 211,360.64 and 77,856.70

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Solution

The fourth proportional to 140,920.06, 211,360.64 and 77,856.70 is: 116,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,920.06 : 211,360.64 = 77,856.70 : x
  2. Step 2: Convert to fraction form
    140,920.06/211,360.64 = 77,856.70/x
  3. Step 3: Cross multiply
    140,920.06x = 211,360.64 × 77,856.70
  4. Step 4: Simplify right side
    140,920.06x = 16,455,840,883.48
  5. Step 5: Solve for x
    x = 16,455,840,883.48/140,920.06
  6. Step 6: Final answer
    x = 116,774.30

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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.