Home / 105,279.44-145,238.96-62,813.28

Finding the Fourth Proportional to 105,279.44, 145,238.96 and 62,813.28

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Solution

The fourth proportional to 105,279.44, 145,238.96 and 62,813.28 is: 86,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,279.44 : 145,238.96 = 62,813.28 : x
  2. Step 2: Convert to fraction form
    105,279.44/145,238.96 = 62,813.28/x
  3. Step 3: Cross multiply
    105,279.44x = 145,238.96 × 62,813.28
  4. Step 4: Simplify right side
    105,279.44x = 9,122,935,461.39
  5. Step 5: Solve for x
    x = 9,122,935,461.39/105,279.44
  6. Step 6: Final answer
    x = 86,654.48

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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.