Home / 151,500.17-209,071.68-83,519.79

Finding the Fourth Proportional to 151,500.17, 209,071.68 and 83,519.79

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Solution

The fourth proportional to 151,500.17, 209,071.68 and 83,519.79 is: 115,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,500.17 : 209,071.68 = 83,519.79 : x
  2. Step 2: Convert to fraction form
    151,500.17/209,071.68 = 83,519.79/x
  3. Step 3: Cross multiply
    151,500.17x = 209,071.68 × 83,519.79
  4. Step 4: Simplify right side
    151,500.17x = 17,461,622,808.55
  5. Step 5: Solve for x
    x = 17,461,622,808.55/151,500.17
  6. Step 6: Final answer
    x = 115,258.11

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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.