Home / 107,890.02-148,905.77-64,912.95

Finding the Fourth Proportional to 107,890.02, 148,905.77 and 64,912.95

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Solution

The fourth proportional to 107,890.02, 148,905.77 and 64,912.95 is: 89,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,890.02 : 148,905.77 = 64,912.95 : x
  2. Step 2: Convert to fraction form
    107,890.02/148,905.77 = 64,912.95/x
  3. Step 3: Cross multiply
    107,890.02x = 148,905.77 × 64,912.95
  4. Step 4: Simplify right side
    107,890.02x = 9,665,912,478.16
  5. Step 5: Solve for x
    x = 9,665,912,478.16/107,890.02
  6. Step 6: Final answer
    x = 89,590.42

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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.