Home / 151,420.64-208,957.68-83,443.91

Finding the Fourth Proportional to 151,420.64, 208,957.68 and 83,443.91

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Solution

The fourth proportional to 151,420.64, 208,957.68 and 83,443.91 is: 115,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,420.64 : 208,957.68 = 83,443.91 : x
  2. Step 2: Convert to fraction form
    151,420.64/208,957.68 = 83,443.91/x
  3. Step 3: Cross multiply
    151,420.64x = 208,957.68 × 83,443.91
  4. Step 4: Simplify right side
    151,420.64x = 17,436,244,798.94
  5. Step 5: Solve for x
    x = 17,436,244,798.94/151,420.64
  6. Step 6: Final answer
    x = 115,151.05

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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.