Home / 133,076.92-183,638.32-76,488.30

Finding the Fourth Proportional to 133,076.92, 183,638.32 and 76,488.30

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Solution

The fourth proportional to 133,076.92, 183,638.32 and 76,488.30 is: 105,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,076.92 : 183,638.32 = 76,488.30 : x
  2. Step 2: Convert to fraction form
    133,076.92/183,638.32 = 76,488.30/x
  3. Step 3: Cross multiply
    133,076.92x = 183,638.32 × 76,488.30
  4. Step 4: Simplify right side
    133,076.92x = 14,046,182,911.66
  5. Step 5: Solve for x
    x = 14,046,182,911.66/133,076.92
  6. Step 6: Final answer
    x = 105,549.35

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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.