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Finding the Fourth Proportional to 141,011.52, 211,235.28 and 84,820.56

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Solution

The fourth proportional to 141,011.52, 211,235.28 and 84,820.56 is: 127,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,011.52 : 211,235.28 = 84,820.56 : x
  2. Step 2: Convert to fraction form
    141,011.52/211,235.28 = 84,820.56/x
  3. Step 3: Cross multiply
    141,011.52x = 211,235.28 × 84,820.56
  4. Step 4: Simplify right side
    141,011.52x = 17,917,094,741.36
  5. Step 5: Solve for x
    x = 17,917,094,741.36/141,011.52
  6. Step 6: Final answer
    x = 127,061.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.