Home / 147,943.20-221,477.40-139,292.40

Finding the Fourth Proportional to 147,943.20, 221,477.40 and 139,292.40

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Solution

The fourth proportional to 147,943.20, 221,477.40 and 139,292.40 is: 208,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,943.20 : 221,477.40 = 139,292.40 : x
  2. Step 2: Convert to fraction form
    147,943.20/221,477.40 = 139,292.40/x
  3. Step 3: Cross multiply
    147,943.20x = 221,477.40 × 139,292.40
  4. Step 4: Simplify right side
    147,943.20x = 30,850,118,591.76
  5. Step 5: Solve for x
    x = 30,850,118,591.76/147,943.20
  6. Step 6: Final answer
    x = 208,526.78

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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.