Home / 138,688.61-191,107.96-95,681.25

Finding the Fourth Proportional to 138,688.61, 191,107.96 and 95,681.25

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Solution

The fourth proportional to 138,688.61, 191,107.96 and 95,681.25 is: 131,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,688.61 : 191,107.96 = 95,681.25 : x
  2. Step 2: Convert to fraction form
    138,688.61/191,107.96 = 95,681.25/x
  3. Step 3: Cross multiply
    138,688.61x = 191,107.96 × 95,681.25
  4. Step 4: Simplify right side
    138,688.61x = 18,285,448,258.55
  5. Step 5: Solve for x
    x = 18,285,448,258.55/138,688.61
  6. Step 6: Final answer
    x = 131,845.35

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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.