Home / 121,827.02-168,156.90-70,851.68

Finding the Fourth Proportional to 121,827.02, 168,156.90 and 70,851.68

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Solution

The fourth proportional to 121,827.02, 168,156.90 and 70,851.68 is: 97,796.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,827.02 : 168,156.90 = 70,851.68 : x
  2. Step 2: Convert to fraction form
    121,827.02/168,156.90 = 70,851.68/x
  3. Step 3: Cross multiply
    121,827.02x = 168,156.90 × 70,851.68
  4. Step 4: Simplify right side
    121,827.02x = 11,914,198,868.59
  5. Step 5: Solve for x
    x = 11,914,198,868.59/121,827.02
  6. Step 6: Final answer
    x = 97,796.03

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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.