Home / 138,270.32-207,529.10-70,848.35

Finding the Fourth Proportional to 138,270.32, 207,529.10 and 70,848.35

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Solution

The fourth proportional to 138,270.32, 207,529.10 and 70,848.35 is: 106,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,270.32 : 207,529.10 = 70,848.35 : x
  2. Step 2: Convert to fraction form
    138,270.32/207,529.10 = 70,848.35/x
  3. Step 3: Cross multiply
    138,270.32x = 207,529.10 × 70,848.35
  4. Step 4: Simplify right side
    138,270.32x = 14,703,094,311.99
  5. Step 5: Solve for x
    x = 14,703,094,311.99/138,270.32
  6. Step 6: Final answer
    x = 106,335.87

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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.