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Finding the Fourth Proportional to 124,801.44, 187,200.24 and 84,721.20

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Solution

The fourth proportional to 124,801.44, 187,200.24 and 84,721.20 is: 127,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,801.44 : 187,200.24 = 84,721.20 : x
  2. Step 2: Convert to fraction form
    124,801.44/187,200.24 = 84,721.20/x
  3. Step 3: Cross multiply
    124,801.44x = 187,200.24 × 84,721.20
  4. Step 4: Simplify right side
    124,801.44x = 15,859,828,973.09
  5. Step 5: Solve for x
    x = 15,859,828,973.09/124,801.44
  6. Step 6: Final answer
    x = 127,080.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.