Home / 151,767.13-209,439.43-83,782.86

Finding the Fourth Proportional to 151,767.13, 209,439.43 and 83,782.86

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Solution

The fourth proportional to 151,767.13, 209,439.43 and 83,782.86 is: 115,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,767.13 : 209,439.43 = 83,782.86 : x
  2. Step 2: Convert to fraction form
    151,767.13/209,439.43 = 83,782.86/x
  3. Step 3: Cross multiply
    151,767.13x = 209,439.43 × 83,782.86
  4. Step 4: Simplify right side
    151,767.13x = 17,547,434,232.71
  5. Step 5: Solve for x
    x = 17,547,434,232.71/151,767.13
  6. Step 6: Final answer
    x = 115,620.78

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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.