Home / 131,938.14-197,957.03-79,384.53

Finding the Fourth Proportional to 131,938.14, 197,957.03 and 79,384.53

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Solution

The fourth proportional to 131,938.14, 197,957.03 and 79,384.53 is: 119,106.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,938.14 : 197,957.03 = 79,384.53 : x
  2. Step 2: Convert to fraction form
    131,938.14/197,957.03 = 79,384.53/x
  3. Step 3: Cross multiply
    131,938.14x = 197,957.03 × 79,384.53
  4. Step 4: Simplify right side
    131,938.14x = 15,714,725,389.82
  5. Step 5: Solve for x
    x = 15,714,725,389.82/131,938.14
  6. Step 6: Final answer
    x = 119,106.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.