Home / 132,803.29-183,263.20-72,372.65

Finding the Fourth Proportional to 132,803.29, 183,263.20 and 72,372.65

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Solution

The fourth proportional to 132,803.29, 183,263.20 and 72,372.65 is: 99,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,803.29 : 183,263.20 = 72,372.65 : x
  2. Step 2: Convert to fraction form
    132,803.29/183,263.20 = 72,372.65/x
  3. Step 3: Cross multiply
    132,803.29x = 183,263.20 × 72,372.65
  4. Step 4: Simplify right side
    132,803.29x = 13,263,243,292.87
  5. Step 5: Solve for x
    x = 13,263,243,292.87/132,803.29
  6. Step 6: Final answer
    x = 99,871.34

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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.