Home / 144,840.60-217,320.90-78,202.38

Finding the Fourth Proportional to 144,840.60, 217,320.90 and 78,202.38

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Solution

The fourth proportional to 144,840.60, 217,320.90 and 78,202.38 is: 117,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,840.60 : 217,320.90 = 78,202.38 : x
  2. Step 2: Convert to fraction form
    144,840.60/217,320.90 = 78,202.38/x
  3. Step 3: Cross multiply
    144,840.60x = 217,320.90 × 78,202.38
  4. Step 4: Simplify right side
    144,840.60x = 16,995,011,603.74
  5. Step 5: Solve for x
    x = 16,995,011,603.74/144,840.60
  6. Step 6: Final answer
    x = 117,335.97

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1.5x scale

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.