Home / 145,802.73-201,207.78-82,140.51

Finding the Fourth Proportional to 145,802.73, 201,207.78 and 82,140.51

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Solution

The fourth proportional to 145,802.73, 201,207.78 and 82,140.51 is: 113,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,802.73 : 201,207.78 = 82,140.51 : x
  2. Step 2: Convert to fraction form
    145,802.73/201,207.78 = 82,140.51/x
  3. Step 3: Cross multiply
    145,802.73x = 201,207.78 × 82,140.51
  4. Step 4: Simplify right side
    145,802.73x = 16,527,309,665.17
  5. Step 5: Solve for x
    x = 16,527,309,665.17/145,802.73
  6. Step 6: Final answer
    x = 113,353.91

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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.