Home / 239,420.79-330,402.89-131,994.68

Finding the Fourth Proportional to 239,420.79, 330,402.89 and 131,994.68

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Solution

The fourth proportional to 239,420.79, 330,402.89 and 131,994.68 is: 182,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,420.79 : 330,402.89 = 131,994.68 : x
  2. Step 2: Convert to fraction form
    239,420.79/330,402.89 = 131,994.68/x
  3. Step 3: Cross multiply
    239,420.79x = 330,402.89 × 131,994.68
  4. Step 4: Simplify right side
    239,420.79x = 43,611,421,424.64
  5. Step 5: Solve for x
    x = 43,611,421,424.64/239,420.79
  6. Step 6: Final answer
    x = 182,153.86

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1.5x scale

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.