Home / 101,620.19-140,228.83-56,293.94

Finding the Fourth Proportional to 101,620.19, 140,228.83 and 56,293.94

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Solution

The fourth proportional to 101,620.19, 140,228.83 and 56,293.94 is: 77,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,620.19 : 140,228.83 = 56,293.94 : x
  2. Step 2: Convert to fraction form
    101,620.19/140,228.83 = 56,293.94/x
  3. Step 3: Cross multiply
    101,620.19x = 140,228.83 × 56,293.94
  4. Step 4: Simplify right side
    101,620.19x = 7,894,033,342.29
  5. Step 5: Solve for x
    x = 7,894,033,342.29/101,620.19
  6. Step 6: Final answer
    x = 77,681.74

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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.