Home / 124,282.64-171,455.44-83,981.68

Finding the Fourth Proportional to 124,282.64, 171,455.44 and 83,981.68

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Solution

The fourth proportional to 124,282.64, 171,455.44 and 83,981.68 is: 115,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,282.64 : 171,455.44 = 83,981.68 : x
  2. Step 2: Convert to fraction form
    124,282.64/171,455.44 = 83,981.68/x
  3. Step 3: Cross multiply
    124,282.64x = 171,455.44 × 83,981.68
  4. Step 4: Simplify right side
    124,282.64x = 14,399,115,896.34
  5. Step 5: Solve for x
    x = 14,399,115,896.34/124,282.64
  6. Step 6: Final answer
    x = 115,857.82

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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.