Home / 142,801.30-197,129.73-102,711.70

Finding the Fourth Proportional to 142,801.30, 197,129.73 and 102,711.70

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Solution

The fourth proportional to 142,801.30, 197,129.73 and 102,711.70 is: 141,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,801.30 : 197,129.73 = 102,711.70 : x
  2. Step 2: Convert to fraction form
    142,801.30/197,129.73 = 102,711.70/x
  3. Step 3: Cross multiply
    142,801.30x = 197,129.73 × 102,711.70
  4. Step 4: Simplify right side
    142,801.30x = 20,247,529,688.84
  5. Step 5: Solve for x
    x = 20,247,529,688.84/142,801.30
  6. Step 6: Final answer
    x = 141,788.13

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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.