Home / 153,331.51-211,597.46-85,347.02

Finding the Fourth Proportional to 153,331.51, 211,597.46 and 85,347.02

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Solution

The fourth proportional to 153,331.51, 211,597.46 and 85,347.02 is: 117,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,331.51 : 211,597.46 = 85,347.02 : x
  2. Step 2: Convert to fraction form
    153,331.51/211,597.46 = 85,347.02/x
  3. Step 3: Cross multiply
    153,331.51x = 211,597.46 × 85,347.02
  4. Step 4: Simplify right side
    153,331.51x = 18,059,212,362.72
  5. Step 5: Solve for x
    x = 18,059,212,362.72/153,331.51
  6. Step 6: Final answer
    x = 117,778.88

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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.