Home / 105,678.47-145,835.24-57,932.62

Finding the Fourth Proportional to 105,678.47, 145,835.24 and 57,932.62

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Solution

The fourth proportional to 105,678.47, 145,835.24 and 57,932.62 is: 79,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,678.47 : 145,835.24 = 57,932.62 : x
  2. Step 2: Convert to fraction form
    105,678.47/145,835.24 = 57,932.62/x
  3. Step 3: Cross multiply
    105,678.47x = 145,835.24 × 57,932.62
  4. Step 4: Simplify right side
    105,678.47x = 8,448,616,887.28
  5. Step 5: Solve for x
    x = 8,448,616,887.28/105,678.47
  6. Step 6: Final answer
    x = 79,946.43

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1.5x scale

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.