Home / 102,014.60-140,769.16-56,682.34

Finding the Fourth Proportional to 102,014.60, 140,769.16 and 56,682.34

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Solution

The fourth proportional to 102,014.60, 140,769.16 and 56,682.34 is: 78,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,014.60 : 140,769.16 = 56,682.34 : x
  2. Step 2: Convert to fraction form
    102,014.60/140,769.16 = 56,682.34/x
  3. Step 3: Cross multiply
    102,014.60x = 140,769.16 × 56,682.34
  4. Step 4: Simplify right side
    102,014.60x = 7,979,124,895.01
  5. Step 5: Solve for x
    x = 7,979,124,895.01/102,014.60
  6. Step 6: Final answer
    x = 78,215.52

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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.