Home / 86,916.60-130,533.30-76,030.20

Finding the Fourth Proportional to 86,916.60, 130,533.30 and 76,030.20

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Solution

The fourth proportional to 86,916.60, 130,533.30 and 76,030.20 is: 114,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916.60 : 130,533.30 = 76,030.20 : x
  2. Step 2: Convert to fraction form
    86,916.60/130,533.30 = 76,030.20/x
  3. Step 3: Cross multiply
    86,916.60x = 130,533.30 × 76,030.20
  4. Step 4: Simplify right side
    86,916.60x = 9,924,472,905.66
  5. Step 5: Solve for x
    x = 9,924,472,905.66/86,916.60
  6. Step 6: Final answer
    x = 114,183.86

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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.