Home / 131,422.70-181,363.49-70,993.35

Finding the Fourth Proportional to 131,422.70, 181,363.49 and 70,993.35

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Solution

The fourth proportional to 131,422.70, 181,363.49 and 70,993.35 is: 97,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,422.70 : 181,363.49 = 70,993.35 : x
  2. Step 2: Convert to fraction form
    131,422.70/181,363.49 = 70,993.35/x
  3. Step 3: Cross multiply
    131,422.70x = 181,363.49 × 70,993.35
  4. Step 4: Simplify right side
    131,422.70x = 12,875,601,722.79
  5. Step 5: Solve for x
    x = 12,875,601,722.79/131,422.70
  6. Step 6: Final answer
    x = 97,970.91

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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.