Home / 102,020.20-153,030.30-73,807.90

Finding the Fourth Proportional to 102,020.20, 153,030.30 and 73,807.90

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Solution

The fourth proportional to 102,020.20, 153,030.30 and 73,807.90 is: 110,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.20 : 153,030.30 = 73,807.90 : x
  2. Step 2: Convert to fraction form
    102,020.20/153,030.30 = 73,807.90/x
  3. Step 3: Cross multiply
    102,020.20x = 153,030.30 × 73,807.90
  4. Step 4: Simplify right side
    102,020.20x = 11,294,845,079.37
  5. Step 5: Solve for x
    x = 11,294,845,079.37/102,020.20
  6. Step 6: Final answer
    x = 110,711.85

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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.