Home / 131,287.53-181,011.00-85,893.62

Finding the Fourth Proportional to 131,287.53, 181,011.00 and 85,893.62

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Solution

The fourth proportional to 131,287.53, 181,011.00 and 85,893.62 is: 118,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,287.53 : 181,011.00 = 85,893.62 : x
  2. Step 2: Convert to fraction form
    131,287.53/181,011.00 = 85,893.62/x
  3. Step 3: Cross multiply
    131,287.53x = 181,011.00 × 85,893.62
  4. Step 4: Simplify right side
    131,287.53x = 15,547,689,466.87
  5. Step 5: Solve for x
    x = 15,547,689,466.87/131,287.53
  6. Step 6: Final answer
    x = 118,424.72

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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.