Home / 109,844.62-151,663.65-86,840.08

Finding the Fourth Proportional to 109,844.62, 151,663.65 and 86,840.08

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Solution

The fourth proportional to 109,844.62, 151,663.65 and 86,840.08 is: 119,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,844.62 : 151,663.65 = 86,840.08 : x
  2. Step 2: Convert to fraction form
    109,844.62/151,663.65 = 86,840.08/x
  3. Step 3: Cross multiply
    109,844.62x = 151,663.65 × 86,840.08
  4. Step 4: Simplify right side
    109,844.62x = 13,170,483,499.09
  5. Step 5: Solve for x
    x = 13,170,483,499.09/109,844.62
  6. Step 6: Final answer
    x = 119,901.03

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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.