Home / 251,876.54-347,589.08-137,153.40

Finding the Fourth Proportional to 251,876.54, 347,589.08 and 137,153.40

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Solution

The fourth proportional to 251,876.54, 347,589.08 and 137,153.40 is: 189,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,876.54 : 347,589.08 = 137,153.40 : x
  2. Step 2: Convert to fraction form
    251,876.54/347,589.08 = 137,153.40/x
  3. Step 3: Cross multiply
    251,876.54x = 347,589.08 × 137,153.40
  4. Step 4: Simplify right side
    251,876.54x = 47,673,024,124.87
  5. Step 5: Solve for x
    x = 47,673,024,124.87/251,876.54
  6. Step 6: Final answer
    x = 189,271.40

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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.