Home / 121,660.94-167,880.53-70,672.26

Finding the Fourth Proportional to 121,660.94, 167,880.53 and 70,672.26

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Solution

The fourth proportional to 121,660.94, 167,880.53 and 70,672.26 is: 97,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,660.94 : 167,880.53 = 70,672.26 : x
  2. Step 2: Convert to fraction form
    121,660.94/167,880.53 = 70,672.26/x
  3. Step 3: Cross multiply
    121,660.94x = 167,880.53 × 70,672.26
  4. Step 4: Simplify right side
    121,660.94x = 11,864,496,111.74
  5. Step 5: Solve for x
    x = 11,864,496,111.74/121,660.94
  6. Step 6: Final answer
    x = 97,521.00

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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.