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Finding the Fourth Proportional to 173,417, 239,345.92 and 100,842.35

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Solution

The fourth proportional to 173,417, 239,345.92 and 100,842.35 is: 139,180.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,417 : 239,345.92 = 100,842.35 : x
  2. Step 2: Convert to fraction form
    173,417/239,345.92 = 100,842.35/x
  3. Step 3: Cross multiply
    173,417x = 239,345.92 × 100,842.35
  4. Step 4: Simplify right side
    173,417x = 24,136,205,035.71
  5. Step 5: Solve for x
    x = 24,136,205,035.71/173,417
  6. Step 6: Final answer
    x = 139,180.16

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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.