Home / 145,219.10-217,828.65-141,331.10

Finding the Fourth Proportional to 145,219.10, 217,828.65 and 141,331.10

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Solution

The fourth proportional to 145,219.10, 217,828.65 and 141,331.10 is: 211,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219.10 : 217,828.65 = 141,331.10 : x
  2. Step 2: Convert to fraction form
    145,219.10/217,828.65 = 141,331.10/x
  3. Step 3: Cross multiply
    145,219.10x = 217,828.65 × 141,331.10
  4. Step 4: Simplify right side
    145,219.10x = 30,785,962,716.02
  5. Step 5: Solve for x
    x = 30,785,962,716.02/145,219.10
  6. Step 6: Final answer
    x = 211,996.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.