Home / 223,105.13-307,885.07-122,503.13

Finding the Fourth Proportional to 223,105.13, 307,885.07 and 122,503.13

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Solution

The fourth proportional to 223,105.13, 307,885.07 and 122,503.13 is: 169,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,105.13 : 307,885.07 = 122,503.13 : x
  2. Step 2: Convert to fraction form
    223,105.13/307,885.07 = 122,503.13/x
  3. Step 3: Cross multiply
    223,105.13x = 307,885.07 × 122,503.13
  4. Step 4: Simplify right side
    223,105.13x = 37,716,883,522.10
  5. Step 5: Solve for x
    x = 37,716,883,522.10/223,105.13
  6. Step 6: Final answer
    x = 169,054.31

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1.5x scale

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.