Home / 153,031.76-211,183.64-85,046.58

Finding the Fourth Proportional to 153,031.76, 211,183.64 and 85,046.58

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Solution

The fourth proportional to 153,031.76, 211,183.64 and 85,046.58 is: 117,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,031.76 : 211,183.64 = 85,046.58 : x
  2. Step 2: Convert to fraction form
    153,031.76/211,183.64 = 85,046.58/x
  3. Step 3: Cross multiply
    153,031.76x = 211,183.64 × 85,046.58
  4. Step 4: Simplify right side
    153,031.76x = 17,960,446,333.95
  5. Step 5: Solve for x
    x = 17,960,446,333.95/153,031.76
  6. Step 6: Final answer
    x = 117,364.18

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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.