Home / 132,979.04-183,528.14-76,401.36

Finding the Fourth Proportional to 132,979.04, 183,528.14 and 76,401.36

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Solution

The fourth proportional to 132,979.04, 183,528.14 and 76,401.36 is: 105,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.04 : 183,528.14 = 76,401.36 : x
  2. Step 2: Convert to fraction form
    132,979.04/183,528.14 = 76,401.36/x
  3. Step 3: Cross multiply
    132,979.04x = 183,528.14 × 76,401.36
  4. Step 4: Simplify right side
    132,979.04x = 14,021,799,494.27
  5. Step 5: Solve for x
    x = 14,021,799,494.27/132,979.04
  6. Step 6: Final answer
    x = 105,443.68

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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.