Home / 102,168.24-140,988.60-56,844.72

Finding the Fourth Proportional to 102,168.24, 140,988.60 and 56,844.72

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Solution

The fourth proportional to 102,168.24, 140,988.60 and 56,844.72 is: 78,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,168.24 : 140,988.60 = 56,844.72 : x
  2. Step 2: Convert to fraction form
    102,168.24/140,988.60 = 56,844.72/x
  3. Step 3: Cross multiply
    102,168.24x = 140,988.60 × 56,844.72
  4. Step 4: Simplify right side
    102,168.24x = 8,014,457,490.19
  5. Step 5: Solve for x
    x = 8,014,457,490.19/102,168.24
  6. Step 6: Final answer
    x = 78,443.73

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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.