Home / 147,831.30-221,763.15-143,165.70

Finding the Fourth Proportional to 147,831.30, 221,763.15 and 143,165.70

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Solution

The fourth proportional to 147,831.30, 221,763.15 and 143,165.70 is: 214,764.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,831.30 : 221,763.15 = 143,165.70 : x
  2. Step 2: Convert to fraction form
    147,831.30/221,763.15 = 143,165.70/x
  3. Step 3: Cross multiply
    147,831.30x = 221,763.15 × 143,165.70
  4. Step 4: Simplify right side
    147,831.30x = 31,748,876,603.96
  5. Step 5: Solve for x
    x = 31,748,876,603.96/147,831.30
  6. Step 6: Final answer
    x = 214,764.24

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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.