Home / 116,913.64-161,331.06-65,938.90

Finding the Fourth Proportional to 116,913.64, 161,331.06 and 65,938.90

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Solution

The fourth proportional to 116,913.64, 161,331.06 and 65,938.90 is: 90,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,913.64 : 161,331.06 = 65,938.90 : x
  2. Step 2: Convert to fraction form
    116,913.64/161,331.06 = 65,938.90/x
  3. Step 3: Cross multiply
    116,913.64x = 161,331.06 × 65,938.90
  4. Step 4: Simplify right side
    116,913.64x = 10,637,992,632.23
  5. Step 5: Solve for x
    x = 10,637,992,632.23/116,913.64
  6. Step 6: Final answer
    x = 90,990.18

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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.