Home / 222,541.20-307,112.40-127,056.78

Finding the Fourth Proportional to 222,541.20, 307,112.40 and 127,056.78

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Solution

The fourth proportional to 222,541.20, 307,112.40 and 127,056.78 is: 175,341.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,541.20 : 307,112.40 = 127,056.78 : x
  2. Step 2: Convert to fraction form
    222,541.20/307,112.40 = 127,056.78/x
  3. Step 3: Cross multiply
    222,541.20x = 307,112.40 × 127,056.78
  4. Step 4: Simplify right side
    222,541.20x = 39,020,712,642.07
  5. Step 5: Solve for x
    x = 39,020,712,642.07/222,541.20
  6. Step 6: Final answer
    x = 175,341.52

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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.