Home / 191,261.12-286,889.34-86,005.76

Finding the Fourth Proportional to 191,261.12, 286,889.34 and 86,005.76

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Solution

The fourth proportional to 191,261.12, 286,889.34 and 86,005.76 is: 129,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,261.12 : 286,889.34 = 86,005.76 : x
  2. Step 2: Convert to fraction form
    191,261.12/286,889.34 = 86,005.76/x
  3. Step 3: Cross multiply
    191,261.12x = 286,889.34 × 86,005.76
  4. Step 4: Simplify right side
    191,261.12x = 24,674,135,722.60
  5. Step 5: Solve for x
    x = 24,674,135,722.60/191,261.12
  6. Step 6: Final answer
    x = 129,007.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.