Home / 131,424.18-181,365.20-70,994.80

Finding the Fourth Proportional to 131,424.18, 181,365.20 and 70,994.80

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Solution

The fourth proportional to 131,424.18, 181,365.20 and 70,994.80 is: 97,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,424.18 : 181,365.20 = 70,994.80 : x
  2. Step 2: Convert to fraction form
    131,424.18/181,365.20 = 70,994.80/x
  3. Step 3: Cross multiply
    131,424.18x = 181,365.20 × 70,994.80
  4. Step 4: Simplify right side
    131,424.18x = 12,875,986,100.96
  5. Step 5: Solve for x
    x = 12,875,986,100.96/131,424.18
  6. Step 6: Final answer
    x = 97,972.73

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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.