Home / 107,681.36-148,560.42-107,515.30

Finding the Fourth Proportional to 107,681.36, 148,560.42 and 107,515.30

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Solution

The fourth proportional to 107,681.36, 148,560.42 and 107,515.30 is: 148,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,681.36 : 148,560.42 = 107,515.30 : x
  2. Step 2: Convert to fraction form
    107,681.36/148,560.42 = 107,515.30/x
  3. Step 3: Cross multiply
    107,681.36x = 148,560.42 × 107,515.30
  4. Step 4: Simplify right side
    107,681.36x = 15,972,518,124.43
  5. Step 5: Solve for x
    x = 15,972,518,124.43/107,681.36
  6. Step 6: Final answer
    x = 148,331.32

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1.5x scale

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.