Home / 147,787.13-203,733.68-105,271.85

Finding the Fourth Proportional to 147,787.13, 203,733.68 and 105,271.85

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Solution

The fourth proportional to 147,787.13, 203,733.68 and 105,271.85 is: 145,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,787.13 : 203,733.68 = 105,271.85 : x
  2. Step 2: Convert to fraction form
    147,787.13/203,733.68 = 105,271.85/x
  3. Step 3: Cross multiply
    147,787.13x = 203,733.68 × 105,271.85
  4. Step 4: Simplify right side
    147,787.13x = 21,447,421,383.88
  5. Step 5: Solve for x
    x = 21,447,421,383.88/147,787.13
  6. Step 6: Final answer
    x = 145,123.74

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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.