Home / 151,981.45-209,760.45-88,356.16

Finding the Fourth Proportional to 151,981.45, 209,760.45 and 88,356.16

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Solution

The fourth proportional to 151,981.45, 209,760.45 and 88,356.16 is: 121,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,981.45 : 209,760.45 = 88,356.16 : x
  2. Step 2: Convert to fraction form
    151,981.45/209,760.45 = 88,356.16/x
  3. Step 3: Cross multiply
    151,981.45x = 209,760.45 × 88,356.16
  4. Step 4: Simplify right side
    151,981.45x = 18,533,627,881.87
  5. Step 5: Solve for x
    x = 18,533,627,881.87/151,981.45
  6. Step 6: Final answer
    x = 121,946.64

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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.