Home / 101,490.19-140,056.72-56,171.29

Finding the Fourth Proportional to 101,490.19, 140,056.72 and 56,171.29

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Solution

The fourth proportional to 101,490.19, 140,056.72 and 56,171.29 is: 77,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,490.19 : 140,056.72 = 56,171.29 : x
  2. Step 2: Convert to fraction form
    101,490.19/140,056.72 = 56,171.29/x
  3. Step 3: Cross multiply
    101,490.19x = 140,056.72 × 56,171.29
  4. Step 4: Simplify right side
    101,490.19x = 7,867,166,635.57
  5. Step 5: Solve for x
    x = 7,867,166,635.57/101,490.19
  6. Step 6: Final answer
    x = 77,516.52

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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.