Home / 106,281.51-146,657.63-65,439.15

Finding the Fourth Proportional to 106,281.51, 146,657.63 and 65,439.15

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Solution

The fourth proportional to 106,281.51, 146,657.63 and 65,439.15 is: 90,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,281.51 : 146,657.63 = 65,439.15 : x
  2. Step 2: Convert to fraction form
    106,281.51/146,657.63 = 65,439.15/x
  3. Step 3: Cross multiply
    106,281.51x = 146,657.63 × 65,439.15
  4. Step 4: Simplify right side
    106,281.51x = 9,597,150,648.21
  5. Step 5: Solve for x
    x = 9,597,150,648.21/106,281.51
  6. Step 6: Final answer
    x = 90,299.34

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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.