Home / 144,612.20-217,436.70-121,802.60

Finding the Fourth Proportional to 144,612.20, 217,436.70 and 121,802.60

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Solution

The fourth proportional to 144,612.20, 217,436.70 and 121,802.60 is: 183,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612.20 : 217,436.70 = 121,802.60 : x
  2. Step 2: Convert to fraction form
    144,612.20/217,436.70 = 121,802.60/x
  3. Step 3: Cross multiply
    144,612.20x = 217,436.70 × 121,802.60
  4. Step 4: Simplify right side
    144,612.20x = 26,484,355,395.42
  5. Step 5: Solve for x
    x = 26,484,355,395.42/144,612.20
  6. Step 6: Final answer
    x = 183,140.53

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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.