Home / 154,701.90-213,447.47-89,274.15

Finding the Fourth Proportional to 154,701.90, 213,447.47 and 89,274.15

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Solution

The fourth proportional to 154,701.90, 213,447.47 and 89,274.15 is: 123,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,701.90 : 213,447.47 = 89,274.15 : x
  2. Step 2: Convert to fraction form
    154,701.90/213,447.47 = 89,274.15/x
  3. Step 3: Cross multiply
    154,701.90x = 213,447.47 × 89,274.15
  4. Step 4: Simplify right side
    154,701.90x = 19,055,341,007.53
  5. Step 5: Solve for x
    x = 19,055,341,007.53/154,701.90
  6. Step 6: Final answer
    x = 123,174.58

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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.