Home / 217,148.36-299,677.03-121,685.81

Finding the Fourth Proportional to 217,148.36, 299,677.03 and 121,685.81

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Solution

The fourth proportional to 217,148.36, 299,677.03 and 121,685.81 is: 167,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,148.36 : 299,677.03 = 121,685.81 : x
  2. Step 2: Convert to fraction form
    217,148.36/299,677.03 = 121,685.81/x
  3. Step 3: Cross multiply
    217,148.36x = 299,677.03 × 121,685.81
  4. Step 4: Simplify right side
    217,148.36x = 36,466,440,331.34
  5. Step 5: Solve for x
    x = 36,466,440,331.34/217,148.36
  6. Step 6: Final answer
    x = 167,933.30

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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.