Home / 112,960.71-155,885.72-61,973.77

Finding the Fourth Proportional to 112,960.71, 155,885.72 and 61,973.77

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Solution

The fourth proportional to 112,960.71, 155,885.72 and 61,973.77 is: 85,523.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,960.71 : 155,885.72 = 61,973.77 : x
  2. Step 2: Convert to fraction form
    112,960.71/155,885.72 = 61,973.77/x
  3. Step 3: Cross multiply
    112,960.71x = 155,885.72 × 61,973.77
  4. Step 4: Simplify right side
    112,960.71x = 9,660,825,569.48
  5. Step 5: Solve for x
    x = 9,660,825,569.48/112,960.71
  6. Step 6: Final answer
    x = 85,523.76

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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.