Home / 140,439.52-193,809.54-76,783.24

Finding the Fourth Proportional to 140,439.52, 193,809.54 and 76,783.24

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Solution

The fourth proportional to 140,439.52, 193,809.54 and 76,783.24 is: 105,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,439.52 : 193,809.54 = 76,783.24 : x
  2. Step 2: Convert to fraction form
    140,439.52/193,809.54 = 76,783.24/x
  3. Step 3: Cross multiply
    140,439.52x = 193,809.54 × 76,783.24
  4. Step 4: Simplify right side
    140,439.52x = 14,881,324,424.11
  5. Step 5: Solve for x
    x = 14,881,324,424.11/140,439.52
  6. Step 6: Final answer
    x = 105,962.51

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1.5x scale

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.