Home / 223,102.79-307,880.13-121,126.22

Finding the Fourth Proportional to 223,102.79, 307,880.13 and 121,126.22

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Solution

The fourth proportional to 223,102.79, 307,880.13 and 121,126.22 is: 167,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,102.79 : 307,880.13 = 121,126.22 : x
  2. Step 2: Convert to fraction form
    223,102.79/307,880.13 = 121,126.22/x
  3. Step 3: Cross multiply
    223,102.79x = 307,880.13 × 121,126.22
  4. Step 4: Simplify right side
    223,102.79x = 37,292,354,820.61
  5. Step 5: Solve for x
    x = 37,292,354,820.61/223,102.79
  6. Step 6: Final answer
    x = 167,153.25

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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.