Home / 99,710.19-137,600.49-54,389.16

Finding the Fourth Proportional to 99,710.19, 137,600.49 and 54,389.16

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Solution

The fourth proportional to 99,710.19, 137,600.49 and 54,389.16 is: 75,057.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,710.19 : 137,600.49 = 54,389.16 : x
  2. Step 2: Convert to fraction form
    99,710.19/137,600.49 = 54,389.16/x
  3. Step 3: Cross multiply
    99,710.19x = 137,600.49 × 54,389.16
  4. Step 4: Simplify right side
    99,710.19x = 7,483,975,066.69
  5. Step 5: Solve for x
    x = 7,483,975,066.69/99,710.19
  6. Step 6: Final answer
    x = 75,057.27

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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.