Home / 132,009.89-182,125.80-86,712.39

Finding the Fourth Proportional to 132,009.89, 182,125.80 and 86,712.39

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Solution

The fourth proportional to 132,009.89, 182,125.80 and 86,712.39 is: 119,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,009.89 : 182,125.80 = 86,712.39 : x
  2. Step 2: Convert to fraction form
    132,009.89/182,125.80 = 86,712.39/x
  3. Step 3: Cross multiply
    132,009.89x = 182,125.80 × 86,712.39
  4. Step 4: Simplify right side
    132,009.89x = 15,792,563,398.66
  5. Step 5: Solve for x
    x = 15,792,563,398.66/132,009.89
  6. Step 6: Final answer
    x = 119,631.67

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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.