Home / 132,870.76-183,368.92-76,285.80

Finding the Fourth Proportional to 132,870.76, 183,368.92 and 76,285.80

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Solution

The fourth proportional to 132,870.76, 183,368.92 and 76,285.80 is: 105,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,870.76 : 183,368.92 = 76,285.80 : x
  2. Step 2: Convert to fraction form
    132,870.76/183,368.92 = 76,285.80/x
  3. Step 3: Cross multiply
    132,870.76x = 183,368.92 × 76,285.80
  4. Step 4: Simplify right side
    132,870.76x = 13,988,444,757.34
  5. Step 5: Solve for x
    x = 13,988,444,757.34/132,870.76
  6. Step 6: Final answer
    x = 105,278.58

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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.