Home / 151,981.67-209,760.75-88,356.37

Finding the Fourth Proportional to 151,981.67, 209,760.75 and 88,356.37

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Solution

The fourth proportional to 151,981.67, 209,760.75 and 88,356.37 is: 121,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,981.67 : 209,760.75 = 88,356.37 : x
  2. Step 2: Convert to fraction form
    151,981.67/209,760.75 = 88,356.37/x
  3. Step 3: Cross multiply
    151,981.67x = 209,760.75 × 88,356.37
  4. Step 4: Simplify right side
    151,981.67x = 18,533,698,438.48
  5. Step 5: Solve for x
    x = 18,533,698,438.48/151,981.67
  6. Step 6: Final answer
    x = 121,946.93

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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.