Home / 84,151.21-126,041.37-69,559.87

Finding the Fourth Proportional to 84,151.21, 126,041.37 and 69,559.87

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Solution

The fourth proportional to 84,151.21, 126,041.37 and 69,559.87 is: 104,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,151.21 : 126,041.37 = 69,559.87 : x
  2. Step 2: Convert to fraction form
    84,151.21/126,041.37 = 69,559.87/x
  3. Step 3: Cross multiply
    84,151.21x = 126,041.37 × 69,559.87
  4. Step 4: Simplify right side
    84,151.21x = 8,767,421,311.82
  5. Step 5: Solve for x
    x = 8,767,421,311.82/84,151.21
  6. Step 6: Final answer
    x = 104,186.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.