Home / 132,143.79-182,355.84-74,782.05

Finding the Fourth Proportional to 132,143.79, 182,355.84 and 74,782.05

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Solution

The fourth proportional to 132,143.79, 182,355.84 and 74,782.05 is: 103,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,143.79 : 182,355.84 = 74,782.05 : x
  2. Step 2: Convert to fraction form
    132,143.79/182,355.84 = 74,782.05/x
  3. Step 3: Cross multiply
    132,143.79x = 182,355.84 × 74,782.05
  4. Step 4: Simplify right side
    132,143.79x = 13,636,942,860.84
  5. Step 5: Solve for x
    x = 13,636,942,860.84/132,143.79
  6. Step 6: Final answer
    x = 103,197.76

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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.