Home / 131,673.08-181,725.54-86,389.34

Finding the Fourth Proportional to 131,673.08, 181,725.54 and 86,389.34

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Solution

The fourth proportional to 131,673.08, 181,725.54 and 86,389.34 is: 119,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,673.08 : 181,725.54 = 86,389.34 : x
  2. Step 2: Convert to fraction form
    131,673.08/181,725.54 = 86,389.34/x
  3. Step 3: Cross multiply
    131,673.08x = 181,725.54 × 86,389.34
  4. Step 4: Simplify right side
    131,673.08x = 15,699,149,461.74
  5. Step 5: Solve for x
    x = 15,699,149,461.74/131,673.08
  6. Step 6: Final answer
    x = 119,228.24

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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.