Home / 109,585.26-151,001.76-84,090.51

Finding the Fourth Proportional to 109,585.26, 151,001.76 and 84,090.51

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Solution

The fourth proportional to 109,585.26, 151,001.76 and 84,090.51 is: 115,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,585.26 : 151,001.76 = 84,090.51 : x
  2. Step 2: Convert to fraction form
    109,585.26/151,001.76 = 84,090.51/x
  3. Step 3: Cross multiply
    109,585.26x = 151,001.76 × 84,090.51
  4. Step 4: Simplify right side
    109,585.26x = 12,697,815,009.30
  5. Step 5: Solve for x
    x = 12,697,815,009.30/109,585.26
  6. Step 6: Final answer
    x = 115,871.56

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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.