Home / 102,083.04-140,880.96-56,771.15

Finding the Fourth Proportional to 102,083.04, 140,880.96 and 56,771.15

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Solution

The fourth proportional to 102,083.04, 140,880.96 and 56,771.15 is: 78,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,083.04 : 140,880.96 = 56,771.15 : x
  2. Step 2: Convert to fraction form
    102,083.04/140,880.96 = 56,771.15/x
  3. Step 3: Cross multiply
    102,083.04x = 140,880.96 × 56,771.15
  4. Step 4: Simplify right side
    102,083.04x = 7,997,973,407.90
  5. Step 5: Solve for x
    x = 7,997,973,407.90/102,083.04
  6. Step 6: Final answer
    x = 78,347.72

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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.