Home / 248,143.72-342,439.52-134,967.28

Finding the Fourth Proportional to 248,143.72, 342,439.52 and 134,967.28

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Solution

The fourth proportional to 248,143.72, 342,439.52 and 134,967.28 is: 186,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,143.72 : 342,439.52 = 134,967.28 : x
  2. Step 2: Convert to fraction form
    248,143.72/342,439.52 = 134,967.28/x
  3. Step 3: Cross multiply
    248,143.72x = 342,439.52 × 134,967.28
  4. Step 4: Simplify right side
    248,143.72x = 46,218,130,578.91
  5. Step 5: Solve for x
    x = 46,218,130,578.91/248,143.72
  6. Step 6: Final answer
    x = 186,255.49

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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.