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Finding the Fourth Proportional to 172,972.04, 238,701.12 and 97,520.60

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Solution

The fourth proportional to 172,972.04, 238,701.12 and 97,520.60 is: 134,578.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,972.04 : 238,701.12 = 97,520.60 : x
  2. Step 2: Convert to fraction form
    172,972.04/238,701.12 = 97,520.60/x
  3. Step 3: Cross multiply
    172,972.04x = 238,701.12 × 97,520.60
  4. Step 4: Simplify right side
    172,972.04x = 23,278,276,443.07
  5. Step 5: Solve for x
    x = 23,278,276,443.07/172,972.04
  6. Step 6: Final answer
    x = 134,578.26

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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.