Home / 201,541.52-278,127.56-112,117.52

Finding the Fourth Proportional to 201,541.52, 278,127.56 and 112,117.52

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Solution

The fourth proportional to 201,541.52, 278,127.56 and 112,117.52 is: 154,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,541.52 : 278,127.56 = 112,117.52 : x
  2. Step 2: Convert to fraction form
    201,541.52/278,127.56 = 112,117.52/x
  3. Step 3: Cross multiply
    201,541.52x = 278,127.56 × 112,117.52
  4. Step 4: Simplify right side
    201,541.52x = 31,182,972,270.85
  5. Step 5: Solve for x
    x = 31,182,972,270.85/201,541.52
  6. Step 6: Final answer
    x = 154,722.32

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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.