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Finding the Fourth Proportional to 172,745.60, 238,307.47 and 101,081.66

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Solution

The fourth proportional to 172,745.60, 238,307.47 and 101,081.66 is: 139,445.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,745.60 : 238,307.47 = 101,081.66 : x
  2. Step 2: Convert to fraction form
    172,745.60/238,307.47 = 101,081.66/x
  3. Step 3: Cross multiply
    172,745.60x = 238,307.47 × 101,081.66
  4. Step 4: Simplify right side
    172,745.60x = 24,088,513,213.76
  5. Step 5: Solve for x
    x = 24,088,513,213.76/172,745.60
  6. Step 6: Final answer
    x = 139,445.02

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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.