Home / 132,872.01-183,259.70-85,129.83

Finding the Fourth Proportional to 132,872.01, 183,259.70 and 85,129.83

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Solution

The fourth proportional to 132,872.01, 183,259.70 and 85,129.83 is: 117,412.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872.01 : 183,259.70 = 85,129.83 : x
  2. Step 2: Convert to fraction form
    132,872.01/183,259.70 = 85,129.83/x
  3. Step 3: Cross multiply
    132,872.01x = 183,259.70 × 85,129.83
  4. Step 4: Simplify right side
    132,872.01x = 15,600,866,681.20
  5. Step 5: Solve for x
    x = 15,600,866,681.20/132,872.01
  6. Step 6: Final answer
    x = 117,412.74

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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.