Home / 93,617.90-140,208.15-91,738.70

Finding the Fourth Proportional to 93,617.90, 140,208.15 and 91,738.70

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Solution

The fourth proportional to 93,617.90, 140,208.15 and 91,738.70 is: 137,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,617.90 : 140,208.15 = 91,738.70 : x
  2. Step 2: Convert to fraction form
    93,617.90/140,208.15 = 91,738.70/x
  3. Step 3: Cross multiply
    93,617.90x = 140,208.15 × 91,738.70
  4. Step 4: Simplify right side
    93,617.90x = 12,862,513,410.41
  5. Step 5: Solve for x
    x = 12,862,513,410.41/93,617.90
  6. Step 6: Final answer
    x = 137,393.74

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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.