Home / 154,831.17-213,588.25-101,147.61

Finding the Fourth Proportional to 154,831.17, 213,588.25 and 101,147.61

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Solution

The fourth proportional to 154,831.17, 213,588.25 and 101,147.61 is: 139,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,831.17 : 213,588.25 = 101,147.61 : x
  2. Step 2: Convert to fraction form
    154,831.17/213,588.25 = 101,147.61/x
  3. Step 3: Cross multiply
    154,831.17x = 213,588.25 × 101,147.61
  4. Step 4: Simplify right side
    154,831.17x = 21,603,940,758.71
  5. Step 5: Solve for x
    x = 21,603,940,758.71/154,831.17
  6. Step 6: Final answer
    x = 139,532.25

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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.