Home / 140,193.16-193,464.04-79,762.50

Finding the Fourth Proportional to 140,193.16, 193,464.04 and 79,762.50

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Solution

The fourth proportional to 140,193.16, 193,464.04 and 79,762.50 is: 110,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,193.16 : 193,464.04 = 79,762.50 : x
  2. Step 2: Convert to fraction form
    140,193.16/193,464.04 = 79,762.50/x
  3. Step 3: Cross multiply
    140,193.16x = 193,464.04 × 79,762.50
  4. Step 4: Simplify right side
    140,193.16x = 15,431,175,490.50
  5. Step 5: Solve for x
    x = 15,431,175,490.50/140,193.16
  6. Step 6: Final answer
    x = 110,070.82

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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.