Home / 205,307.33-307,862.57-105,416.10

Finding the Fourth Proportional to 205,307.33, 307,862.57 and 105,416.10

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Solution

The fourth proportional to 205,307.33, 307,862.57 and 105,416.10 is: 158,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,307.33 : 307,862.57 = 105,416.10 : x
  2. Step 2: Convert to fraction form
    205,307.33/307,862.57 = 105,416.10/x
  3. Step 3: Cross multiply
    205,307.33x = 307,862.57 × 105,416.10
  4. Step 4: Simplify right side
    205,307.33x = 32,453,671,728.92
  5. Step 5: Solve for x
    x = 32,453,671,728.92/205,307.33
  6. Step 6: Final answer
    x = 158,073.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.