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Finding the Fourth Proportional to 145,963.60, 218,929.20 and 119,622.40

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Solution

The fourth proportional to 145,963.60, 218,929.20 and 119,622.40 is: 179,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,963.60 : 218,929.20 = 119,622.40 : x
  2. Step 2: Convert to fraction form
    145,963.60/218,929.20 = 119,622.40/x
  3. Step 3: Cross multiply
    145,963.60x = 218,929.20 × 119,622.40
  4. Step 4: Simplify right side
    145,963.60x = 26,188,836,334.08
  5. Step 5: Solve for x
    x = 26,188,836,334.08/145,963.60
  6. Step 6: Final answer
    x = 179,420.32

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1.5x scale

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.