Home / 222,108.12-306,513.90-121,506.12

Finding the Fourth Proportional to 222,108.12, 306,513.90 and 121,506.12

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Solution

The fourth proportional to 222,108.12, 306,513.90 and 121,506.12 is: 167,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,108.12 : 306,513.90 = 121,506.12 : x
  2. Step 2: Convert to fraction form
    222,108.12/306,513.90 = 121,506.12/x
  3. Step 3: Cross multiply
    222,108.12x = 306,513.90 × 121,506.12
  4. Step 4: Simplify right side
    222,108.12x = 37,243,314,715.07
  5. Step 5: Solve for x
    x = 37,243,314,715.07/222,108.12
  6. Step 6: Final answer
    x = 167,681.01

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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.