Home / 156,320.51-215,719.46-88,336.01

Finding the Fourth Proportional to 156,320.51, 215,719.46 and 88,336.01

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Solution

The fourth proportional to 156,320.51, 215,719.46 and 88,336.01 is: 121,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,320.51 : 215,719.46 = 88,336.01 : x
  2. Step 2: Convert to fraction form
    156,320.51/215,719.46 = 88,336.01/x
  3. Step 3: Cross multiply
    156,320.51x = 215,719.46 × 88,336.01
  4. Step 4: Simplify right side
    156,320.51x = 19,055,794,855.48
  5. Step 5: Solve for x
    x = 19,055,794,855.48/156,320.51
  6. Step 6: Final answer
    x = 121,902.08

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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.