Home / 124,190.81-186,299.48-53,120.80

Finding the Fourth Proportional to 124,190.81, 186,299.48 and 53,120.80

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Solution

The fourth proportional to 124,190.81, 186,299.48 and 53,120.80 is: 79,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,190.81 : 186,299.48 = 53,120.80 : x
  2. Step 2: Convert to fraction form
    124,190.81/186,299.48 = 53,120.80/x
  3. Step 3: Cross multiply
    124,190.81x = 186,299.48 × 53,120.80
  4. Step 4: Simplify right side
    124,190.81x = 9,896,377,417.18
  5. Step 5: Solve for x
    x = 9,896,377,417.18/124,190.81
  6. Step 6: Final answer
    x = 79,686.87

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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.