Home / 161,759.91-223,225.59-90,138.36

Finding the Fourth Proportional to 161,759.91, 223,225.59 and 90,138.36

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Solution

The fourth proportional to 161,759.91, 223,225.59 and 90,138.36 is: 124,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,759.91 : 223,225.59 = 90,138.36 : x
  2. Step 2: Convert to fraction form
    161,759.91/223,225.59 = 90,138.36/x
  3. Step 3: Cross multiply
    161,759.91x = 223,225.59 × 90,138.36
  4. Step 4: Simplify right side
    161,759.91x = 20,121,188,592.63
  5. Step 5: Solve for x
    x = 20,121,188,592.63/161,759.91
  6. Step 6: Final answer
    x = 124,389.22

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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.