Home / 116,729.28-161,087.07-66,428.28

Finding the Fourth Proportional to 116,729.28, 161,087.07 and 66,428.28

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Solution

The fourth proportional to 116,729.28, 161,087.07 and 66,428.28 is: 91,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,729.28 : 161,087.07 = 66,428.28 : x
  2. Step 2: Convert to fraction form
    116,729.28/161,087.07 = 66,428.28/x
  3. Step 3: Cross multiply
    116,729.28x = 161,087.07 × 66,428.28
  4. Step 4: Simplify right side
    116,729.28x = 10,700,736,990.34
  5. Step 5: Solve for x
    x = 10,700,736,990.34/116,729.28
  6. Step 6: Final answer
    x = 91,671.40

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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.