Home / 124,618.68-171,971.10-68,031

Finding the Fourth Proportional to 124,618.68, 171,971.10 and 68,031

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Solution

The fourth proportional to 124,618.68, 171,971.10 and 68,031 is: 93,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,618.68 : 171,971.10 = 68,031 : x
  2. Step 2: Convert to fraction form
    124,618.68/171,971.10 = 68,031/x
  3. Step 3: Cross multiply
    124,618.68x = 171,971.10 × 68,031
  4. Step 4: Simplify right side
    124,618.68x = 11,699,365,904.10
  5. Step 5: Solve for x
    x = 11,699,365,904.10/124,618.68
  6. Step 6: Final answer
    x = 93,881.32

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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.