Home / 103,780.01-143,216.81-62,930.49

Finding the Fourth Proportional to 103,780.01, 143,216.81 and 62,930.49

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Solution

The fourth proportional to 103,780.01, 143,216.81 and 62,930.49 is: 86,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,780.01 : 143,216.81 = 62,930.49 : x
  2. Step 2: Convert to fraction form
    103,780.01/143,216.81 = 62,930.49/x
  3. Step 3: Cross multiply
    103,780.01x = 143,216.81 × 62,930.49
  4. Step 4: Simplify right side
    103,780.01x = 9,012,703,714.88
  5. Step 5: Solve for x
    x = 9,012,703,714.88/103,780.01
  6. Step 6: Final answer
    x = 86,844.32

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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.