Home / 153,013.24-211,159.42-85,036.57

Finding the Fourth Proportional to 153,013.24, 211,159.42 and 85,036.57

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Solution

The fourth proportional to 153,013.24, 211,159.42 and 85,036.57 is: 117,351.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,013.24 : 211,159.42 = 85,036.57 : x
  2. Step 2: Convert to fraction form
    153,013.24/211,159.42 = 85,036.57/x
  3. Step 3: Cross multiply
    153,013.24x = 211,159.42 × 85,036.57
  4. Step 4: Simplify right side
    153,013.24x = 17,956,272,799.99
  5. Step 5: Solve for x
    x = 17,956,272,799.99/153,013.24
  6. Step 6: Final answer
    x = 117,351.11

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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.