Home / 121,412.79-167,569.83-70,455.69

Finding the Fourth Proportional to 121,412.79, 167,569.83 and 70,455.69

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Solution

The fourth proportional to 121,412.79, 167,569.83 and 70,455.69 is: 97,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,412.79 : 167,569.83 = 70,455.69 : x
  2. Step 2: Convert to fraction form
    121,412.79/167,569.83 = 70,455.69/x
  3. Step 3: Cross multiply
    121,412.79x = 167,569.83 × 70,455.69
  4. Step 4: Simplify right side
    121,412.79x = 11,806,247,995.83
  5. Step 5: Solve for x
    x = 11,806,247,995.83/121,412.79
  6. Step 6: Final answer
    x = 97,240.56

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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.