Home / 153,522.72-211,615.97-102,434.40

Finding the Fourth Proportional to 153,522.72, 211,615.97 and 102,434.40

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Solution

The fourth proportional to 153,522.72, 211,615.97 and 102,434.40 is: 141,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,522.72 : 211,615.97 = 102,434.40 : x
  2. Step 2: Convert to fraction form
    153,522.72/211,615.97 = 102,434.40/x
  3. Step 3: Cross multiply
    153,522.72x = 211,615.97 × 102,434.40
  4. Step 4: Simplify right side
    153,522.72x = 21,676,754,917.37
  5. Step 5: Solve for x
    x = 21,676,754,917.37/153,522.72
  6. Step 6: Final answer
    x = 141,195.75

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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.