Home / 131,303.04-181,219.04-74,732.64

Finding the Fourth Proportional to 131,303.04, 181,219.04 and 74,732.64

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Solution

The fourth proportional to 131,303.04, 181,219.04 and 74,732.64 is: 103,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,303.04 : 181,219.04 = 74,732.64 : x
  2. Step 2: Convert to fraction form
    131,303.04/181,219.04 = 74,732.64/x
  3. Step 3: Cross multiply
    131,303.04x = 181,219.04 × 74,732.64
  4. Step 4: Simplify right side
    131,303.04x = 13,542,977,277.47
  5. Step 5: Solve for x
    x = 13,542,977,277.47/131,303.04
  6. Step 6: Final answer
    x = 103,142.91

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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.