Home / 159,399.04-219,967.68-87,777.52

Finding the Fourth Proportional to 159,399.04, 219,967.68 and 87,777.52

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Solution

The fourth proportional to 159,399.04, 219,967.68 and 87,777.52 is: 121,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,399.04 : 219,967.68 = 87,777.52 : x
  2. Step 2: Convert to fraction form
    159,399.04/219,967.68 = 87,777.52/x
  3. Step 3: Cross multiply
    159,399.04x = 219,967.68 × 87,777.52
  4. Step 4: Simplify right side
    159,399.04x = 19,308,217,430.55
  5. Step 5: Solve for x
    x = 19,308,217,430.55/159,399.04
  6. Step 6: Final answer
    x = 121,131.33

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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.