Home / 154,344.48-212,875.20-103,341

Finding the Fourth Proportional to 154,344.48, 212,875.20 and 103,341

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Solution

The fourth proportional to 154,344.48, 212,875.20 and 103,341 is: 142,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,344.48 : 212,875.20 = 103,341 : x
  2. Step 2: Convert to fraction form
    154,344.48/212,875.20 = 103,341/x
  3. Step 3: Cross multiply
    154,344.48x = 212,875.20 × 103,341
  4. Step 4: Simplify right side
    154,344.48x = 21,998,736,043.20
  5. Step 5: Solve for x
    x = 21,998,736,043.20/154,344.48
  6. Step 6: Final answer
    x = 142,530.11

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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.