Home / 153,027.51-211,173.69-85,042.72

Finding the Fourth Proportional to 153,027.51, 211,173.69 and 85,042.72

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Solution

The fourth proportional to 153,027.51, 211,173.69 and 85,042.72 is: 117,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,027.51 : 211,173.69 = 85,042.72 : x
  2. Step 2: Convert to fraction form
    153,027.51/211,173.69 = 85,042.72/x
  3. Step 3: Cross multiply
    153,027.51x = 211,173.69 × 85,042.72
  4. Step 4: Simplify right side
    153,027.51x = 17,958,784,990.04
  5. Step 5: Solve for x
    x = 17,958,784,990.04/153,027.51
  6. Step 6: Final answer
    x = 117,356.58

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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.