Home / 131,368.61-181,289.23-74,008.62

Finding the Fourth Proportional to 131,368.61, 181,289.23 and 74,008.62

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Solution

The fourth proportional to 131,368.61, 181,289.23 and 74,008.62 is: 102,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,368.61 : 181,289.23 = 74,008.62 : x
  2. Step 2: Convert to fraction form
    131,368.61/181,289.23 = 74,008.62/x
  3. Step 3: Cross multiply
    131,368.61x = 181,289.23 × 74,008.62
  4. Step 4: Simplify right side
    131,368.61x = 13,416,965,145.84
  5. Step 5: Solve for x
    x = 13,416,965,145.84/131,368.61
  6. Step 6: Final answer
    x = 102,132.20

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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.