Home / 205,478.61-283,647.79-124,931.87

Finding the Fourth Proportional to 205,478.61, 283,647.79 and 124,931.87

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Solution

The fourth proportional to 205,478.61, 283,647.79 and 124,931.87 is: 172,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,478.61 : 283,647.79 = 124,931.87 : x
  2. Step 2: Convert to fraction form
    205,478.61/283,647.79 = 124,931.87/x
  3. Step 3: Cross multiply
    205,478.61x = 283,647.79 × 124,931.87
  4. Step 4: Simplify right side
    205,478.61x = 35,436,648,627.67
  5. Step 5: Solve for x
    x = 35,436,648,627.67/205,478.61
  6. Step 6: Final answer
    x = 172,459.07

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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.