Home / 95,384.16-142,943.28-81,270.72

Finding the Fourth Proportional to 95,384.16, 142,943.28 and 81,270.72

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Solution

The fourth proportional to 95,384.16, 142,943.28 and 81,270.72 is: 121,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,384.16 : 142,943.28 = 81,270.72 : x
  2. Step 2: Convert to fraction form
    95,384.16/142,943.28 = 81,270.72/x
  3. Step 3: Cross multiply
    95,384.16x = 142,943.28 × 81,270.72
  4. Step 4: Simplify right side
    95,384.16x = 11,617,103,284.76
  5. Step 5: Solve for x
    x = 11,617,103,284.76/95,384.16
  6. Step 6: Final answer
    x = 121,792.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.