Home / 123,558.23-185,125.75-67,437.72

Finding the Fourth Proportional to 123,558.23, 185,125.75 and 67,437.72

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Solution

The fourth proportional to 123,558.23, 185,125.75 and 67,437.72 is: 101,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,558.23 : 185,125.75 = 67,437.72 : x
  2. Step 2: Convert to fraction form
    123,558.23/185,125.75 = 67,437.72/x
  3. Step 3: Cross multiply
    123,558.23x = 185,125.75 × 67,437.72
  4. Step 4: Simplify right side
    123,558.23x = 12,484,458,834.20
  5. Step 5: Solve for x
    x = 12,484,458,834.20/123,558.23
  6. Step 6: Final answer
    x = 101,041.10

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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.