Home / 157,974.51-217,989.41-89,986.15

Finding the Fourth Proportional to 157,974.51, 217,989.41 and 89,986.15

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Solution

The fourth proportional to 157,974.51, 217,989.41 and 89,986.15 is: 124,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,974.51 : 217,989.41 = 89,986.15 : x
  2. Step 2: Convert to fraction form
    157,974.51/217,989.41 = 89,986.15/x
  3. Step 3: Cross multiply
    157,974.51x = 217,989.41 × 89,986.15
  4. Step 4: Simplify right side
    157,974.51x = 19,616,027,569.23
  5. Step 5: Solve for x
    x = 19,616,027,569.23/157,974.51
  6. Step 6: Final answer
    x = 124,172.10

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1.5x scale

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.