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Finding the Fourth Proportional to 172,963.68, 238,758.84 and 148,668.72

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Solution

The fourth proportional to 172,963.68, 238,758.84 and 148,668.72 is: 205,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,963.68 : 238,758.84 = 148,668.72 : x
  2. Step 2: Convert to fraction form
    172,963.68/238,758.84 = 148,668.72/x
  3. Step 3: Cross multiply
    172,963.68x = 238,758.84 × 148,668.72
  4. Step 4: Simplify right side
    172,963.68x = 35,495,971,131.48
  5. Step 5: Solve for x
    x = 35,495,971,131.48/172,963.68
  6. Step 6: Final answer
    x = 205,222.11

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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.