Home / 99,114.32-136,744.26-56,642.60

Finding the Fourth Proportional to 99,114.32, 136,744.26 and 56,642.60

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Solution

The fourth proportional to 99,114.32, 136,744.26 and 56,642.60 is: 78,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,114.32 : 136,744.26 = 56,642.60 : x
  2. Step 2: Convert to fraction form
    99,114.32/136,744.26 = 56,642.60/x
  3. Step 3: Cross multiply
    99,114.32x = 136,744.26 × 56,642.60
  4. Step 4: Simplify right side
    99,114.32x = 7,745,550,421.48
  5. Step 5: Solve for x
    x = 7,745,550,421.48/99,114.32
  6. Step 6: Final answer
    x = 78,147.64

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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.