Home / 100,828.29-139,096.85-60,472.68

Finding the Fourth Proportional to 100,828.29, 139,096.85 and 60,472.68

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Solution

The fourth proportional to 100,828.29, 139,096.85 and 60,472.68 is: 83,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,828.29 : 139,096.85 = 60,472.68 : x
  2. Step 2: Convert to fraction form
    100,828.29/139,096.85 = 60,472.68/x
  3. Step 3: Cross multiply
    100,828.29x = 139,096.85 × 60,472.68
  4. Step 4: Simplify right side
    100,828.29x = 8,411,558,475.08
  5. Step 5: Solve for x
    x = 8,411,558,475.08/100,828.29
  6. Step 6: Final answer
    x = 83,424.58

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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.