Home / 119,098.72-178,674-40,209.60

Finding the Fourth Proportional to 119,098.72, 178,674 and 40,209.60

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Solution

The fourth proportional to 119,098.72, 178,674 and 40,209.60 is: 60,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,098.72 : 178,674 = 40,209.60 : x
  2. Step 2: Convert to fraction form
    119,098.72/178,674 = 40,209.60/x
  3. Step 3: Cross multiply
    119,098.72x = 178,674 × 40,209.60
  4. Step 4: Simplify right side
    119,098.72x = 7,184,410,070.40
  5. Step 5: Solve for x
    x = 7,184,410,070.40/119,098.72
  6. Step 6: Final answer
    x = 60,323.15

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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.