Home / 154,014.83-212,640.42-137,854.11

Finding the Fourth Proportional to 154,014.83, 212,640.42 and 137,854.11

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Solution

The fourth proportional to 154,014.83, 212,640.42 and 137,854.11 is: 190,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,014.83 : 212,640.42 = 137,854.11 : x
  2. Step 2: Convert to fraction form
    154,014.83/212,640.42 = 137,854.11/x
  3. Step 3: Cross multiply
    154,014.83x = 212,640.42 × 137,854.11
  4. Step 4: Simplify right side
    154,014.83x = 29,313,355,849.13
  5. Step 5: Solve for x
    x = 29,313,355,849.13/154,014.83
  6. Step 6: Final answer
    x = 190,328.14

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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.