Home / 131,653.68-181,681.83-71,224.40

Finding the Fourth Proportional to 131,653.68, 181,681.83 and 71,224.40

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Solution

The fourth proportional to 131,653.68, 181,681.83 and 71,224.40 is: 98,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.68 : 181,681.83 = 71,224.40 : x
  2. Step 2: Convert to fraction form
    131,653.68/181,681.83 = 71,224.40/x
  3. Step 3: Cross multiply
    131,653.68x = 181,681.83 × 71,224.40
  4. Step 4: Simplify right side
    131,653.68x = 12,940,178,424.24
  5. Step 5: Solve for x
    x = 12,940,178,424.24/131,653.68
  6. Step 6: Final answer
    x = 98,289.53

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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.