Home / 128,802.02-193,163.66-89,076.29

Finding the Fourth Proportional to 128,802.02, 193,163.66 and 89,076.29

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Solution

The fourth proportional to 128,802.02, 193,163.66 and 89,076.29 is: 133,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,802.02 : 193,163.66 = 89,076.29 : x
  2. Step 2: Convert to fraction form
    128,802.02/193,163.66 = 89,076.29/x
  3. Step 3: Cross multiply
    128,802.02x = 193,163.66 × 89,076.29
  4. Step 4: Simplify right side
    128,802.02x = 17,206,300,784.42
  5. Step 5: Solve for x
    x = 17,206,300,784.42/128,802.02
  6. Step 6: Final answer
    x = 133,587.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.