Home / 217,041.12-299,275.56-136,371.60

Finding the Fourth Proportional to 217,041.12, 299,275.56 and 136,371.60

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Solution

The fourth proportional to 217,041.12, 299,275.56 and 136,371.60 is: 188,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.12 : 299,275.56 = 136,371.60 : x
  2. Step 2: Convert to fraction form
    217,041.12/299,275.56 = 136,371.60/x
  3. Step 3: Cross multiply
    217,041.12x = 299,275.56 × 136,371.60
  4. Step 4: Simplify right side
    217,041.12x = 40,812,686,958.10
  5. Step 5: Solve for x
    x = 40,812,686,958.10/217,041.12
  6. Step 6: Final answer
    x = 188,041.27

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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.