Home / 107,772.16-161,483.52-70,287.36

Finding the Fourth Proportional to 107,772.16, 161,483.52 and 70,287.36

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Solution

The fourth proportional to 107,772.16, 161,483.52 and 70,287.36 is: 105,317.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,772.16 : 161,483.52 = 70,287.36 : x
  2. Step 2: Convert to fraction form
    107,772.16/161,483.52 = 70,287.36/x
  3. Step 3: Cross multiply
    107,772.16x = 161,483.52 × 70,287.36
  4. Step 4: Simplify right side
    107,772.16x = 11,350,250,304.31
  5. Step 5: Solve for x
    x = 11,350,250,304.31/107,772.16
  6. Step 6: Final answer
    x = 105,317.09

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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.