Home / 137,298.50-189,462.95-76,868.58

Finding the Fourth Proportional to 137,298.50, 189,462.95 and 76,868.58

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Solution

The fourth proportional to 137,298.50, 189,462.95 and 76,868.58 is: 106,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,298.50 : 189,462.95 = 76,868.58 : x
  2. Step 2: Convert to fraction form
    137,298.50/189,462.95 = 76,868.58/x
  3. Step 3: Cross multiply
    137,298.50x = 189,462.95 × 76,868.58
  4. Step 4: Simplify right side
    137,298.50x = 14,563,747,544.77
  5. Step 5: Solve for x
    x = 14,563,747,544.77/137,298.50
  6. Step 6: Final answer
    x = 106,073.61

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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.