Home / 252,133.68-347,943.72-138,956.40

Finding the Fourth Proportional to 252,133.68, 347,943.72 and 138,956.40

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Solution

The fourth proportional to 252,133.68, 347,943.72 and 138,956.40 is: 191,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,133.68 : 347,943.72 = 138,956.40 : x
  2. Step 2: Convert to fraction form
    252,133.68/347,943.72 = 138,956.40/x
  3. Step 3: Cross multiply
    252,133.68x = 347,943.72 × 138,956.40
  4. Step 4: Simplify right side
    252,133.68x = 48,349,006,733.81
  5. Step 5: Solve for x
    x = 48,349,006,733.81/252,133.68
  6. Step 6: Final answer
    x = 191,759.41

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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.