Home / 106,152.87-146,430.12-66,339.75

Finding the Fourth Proportional to 106,152.87, 146,430.12 and 66,339.75

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Solution

The fourth proportional to 106,152.87, 146,430.12 and 66,339.75 is: 91,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,152.87 : 146,430.12 = 66,339.75 : x
  2. Step 2: Convert to fraction form
    106,152.87/146,430.12 = 66,339.75/x
  3. Step 3: Cross multiply
    106,152.87x = 146,430.12 × 66,339.75
  4. Step 4: Simplify right side
    106,152.87x = 9,714,137,553.27
  5. Step 5: Solve for x
    x = 9,714,137,553.27/106,152.87
  6. Step 6: Final answer
    x = 91,510.83

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1.5x scale

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.