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Finding the Fourth Proportional to 172,851.53, 238,536.91 and 100,259.32

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Solution

The fourth proportional to 172,851.53, 238,536.91 and 100,259.32 is: 138,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,851.53 : 238,536.91 = 100,259.32 : x
  2. Step 2: Convert to fraction form
    172,851.53/238,536.91 = 100,259.32/x
  3. Step 3: Cross multiply
    172,851.53x = 238,536.91 × 100,259.32
  4. Step 4: Simplify right side
    172,851.53x = 23,915,548,657.76
  5. Step 5: Solve for x
    x = 23,915,548,657.76/172,851.53
  6. Step 6: Final answer
    x = 138,358.91

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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.