Home / 151,541.07-209,172.56-87,894.51

Finding the Fourth Proportional to 151,541.07, 209,172.56 and 87,894.51

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Solution

The fourth proportional to 151,541.07, 209,172.56 and 87,894.51 is: 121,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,541.07 : 209,172.56 = 87,894.51 : x
  2. Step 2: Convert to fraction form
    151,541.07/209,172.56 = 87,894.51/x
  3. Step 3: Cross multiply
    151,541.07x = 209,172.56 × 87,894.51
  4. Step 4: Simplify right side
    151,541.07x = 18,385,119,227.17
  5. Step 5: Solve for x
    x = 18,385,119,227.17/151,541.07
  6. Step 6: Final answer
    x = 121,321.03

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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.