Home / 145,319.28-200,564.69-84,889.72

Finding the Fourth Proportional to 145,319.28, 200,564.69 and 84,889.72

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Solution

The fourth proportional to 145,319.28, 200,564.69 and 84,889.72 is: 117,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,319.28 : 200,564.69 = 84,889.72 : x
  2. Step 2: Convert to fraction form
    145,319.28/200,564.69 = 84,889.72/x
  3. Step 3: Cross multiply
    145,319.28x = 200,564.69 × 84,889.72
  4. Step 4: Simplify right side
    145,319.28x = 17,025,880,375.99
  5. Step 5: Solve for x
    x = 17,025,880,375.99/145,319.28
  6. Step 6: Final answer
    x = 117,161.88

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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.