Home / 131,576.12-181,595.53-86,385.19

Finding the Fourth Proportional to 131,576.12, 181,595.53 and 86,385.19

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Solution

The fourth proportional to 131,576.12, 181,595.53 and 86,385.19 is: 119,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.12 : 181,595.53 = 86,385.19 : x
  2. Step 2: Convert to fraction form
    131,576.12/181,595.53 = 86,385.19/x
  3. Step 3: Cross multiply
    131,576.12x = 181,595.53 × 86,385.19
  4. Step 4: Simplify right side
    131,576.12x = 15,687,164,362.20
  5. Step 5: Solve for x
    x = 15,687,164,362.20/131,576.12
  6. Step 6: Final answer
    x = 119,225.01

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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.