Home / 123,445.14-185,235.12-52,356.72

Finding the Fourth Proportional to 123,445.14, 185,235.12 and 52,356.72

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Solution

The fourth proportional to 123,445.14, 185,235.12 and 52,356.72 is: 78,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.14 : 185,235.12 = 52,356.72 : x
  2. Step 2: Convert to fraction form
    123,445.14/185,235.12 = 52,356.72/x
  3. Step 3: Cross multiply
    123,445.14x = 185,235.12 × 52,356.72
  4. Step 4: Simplify right side
    123,445.14x = 9,698,303,312.01
  5. Step 5: Solve for x
    x = 9,698,303,312.01/123,445.14
  6. Step 6: Final answer
    x = 78,563.67

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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.