Home / 159,816.19-220,551.63-87,223.04

Finding the Fourth Proportional to 159,816.19, 220,551.63 and 87,223.04

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Solution

The fourth proportional to 159,816.19, 220,551.63 and 87,223.04 is: 120,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,816.19 : 220,551.63 = 87,223.04 : x
  2. Step 2: Convert to fraction form
    159,816.19/220,551.63 = 87,223.04/x
  3. Step 3: Cross multiply
    159,816.19x = 220,551.63 × 87,223.04
  4. Step 4: Simplify right side
    159,816.19x = 19,237,184,196.93
  5. Step 5: Solve for x
    x = 19,237,184,196.93/159,816.19
  6. Step 6: Final answer
    x = 120,370.69

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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.