Home / 127,957.19-191,780.13-90,528.06

Finding the Fourth Proportional to 127,957.19, 191,780.13 and 90,528.06

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Solution

The fourth proportional to 127,957.19, 191,780.13 and 90,528.06 is: 135,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957.19 : 191,780.13 = 90,528.06 : x
  2. Step 2: Convert to fraction form
    127,957.19/191,780.13 = 90,528.06/x
  3. Step 3: Cross multiply
    127,957.19x = 191,780.13 × 90,528.06
  4. Step 4: Simplify right side
    127,957.19x = 17,361,483,115.45
  5. Step 5: Solve for x
    x = 17,361,483,115.45/127,957.19
  6. Step 6: Final answer
    x = 135,681.97

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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.