Home / 153,088.43-211,265.55-85,102.79

Finding the Fourth Proportional to 153,088.43, 211,265.55 and 85,102.79

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Solution

The fourth proportional to 153,088.43, 211,265.55 and 85,102.79 is: 117,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,088.43 : 211,265.55 = 85,102.79 : x
  2. Step 2: Convert to fraction form
    153,088.43/211,265.55 = 85,102.79/x
  3. Step 3: Cross multiply
    153,088.43x = 211,265.55 × 85,102.79
  4. Step 4: Simplify right side
    153,088.43x = 17,979,286,679.56
  5. Step 5: Solve for x
    x = 17,979,286,679.56/153,088.43
  6. Step 6: Final answer
    x = 117,443.80

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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.