Home / 153,304.20-211,569.96-85,320.42

Finding the Fourth Proportional to 153,304.20, 211,569.96 and 85,320.42

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Solution

The fourth proportional to 153,304.20, 211,569.96 and 85,320.42 is: 117,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,304.20 : 211,569.96 = 85,320.42 : x
  2. Step 2: Convert to fraction form
    153,304.20/211,569.96 = 85,320.42/x
  3. Step 3: Cross multiply
    153,304.20x = 211,569.96 × 85,320.42
  4. Step 4: Simplify right side
    153,304.20x = 18,051,237,846.58
  5. Step 5: Solve for x
    x = 18,051,237,846.58/153,304.20
  6. Step 6: Final answer
    x = 117,747.84

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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.