Home / 116,807.28-161,206.72-71,515.76

Finding the Fourth Proportional to 116,807.28, 161,206.72 and 71,515.76

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Solution

The fourth proportional to 116,807.28, 161,206.72 and 71,515.76 is: 98,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,807.28 : 161,206.72 = 71,515.76 : x
  2. Step 2: Convert to fraction form
    116,807.28/161,206.72 = 71,515.76/x
  3. Step 3: Cross multiply
    116,807.28x = 161,206.72 × 71,515.76
  4. Step 4: Simplify right side
    116,807.28x = 11,528,821,097.91
  5. Step 5: Solve for x
    x = 11,528,821,097.91/116,807.28
  6. Step 6: Final answer
    x = 98,699.51

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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.