Home / 107,388.60-148,355.42-70,681.38

Finding the Fourth Proportional to 107,388.60, 148,355.42 and 70,681.38

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Solution

The fourth proportional to 107,388.60, 148,355.42 and 70,681.38 is: 97,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,388.60 : 148,355.42 = 70,681.38 : x
  2. Step 2: Convert to fraction form
    107,388.60/148,355.42 = 70,681.38/x
  3. Step 3: Cross multiply
    107,388.60x = 148,355.42 × 70,681.38
  4. Step 4: Simplify right side
    107,388.60x = 10,485,965,816.08
  5. Step 5: Solve for x
    x = 10,485,965,816.08/107,388.60
  6. Step 6: Final answer
    x = 97,645.06

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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.