Home / 146,150.12-201,685.04-81,618.68

Finding the Fourth Proportional to 146,150.12, 201,685.04 and 81,618.68

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Solution

The fourth proportional to 146,150.12, 201,685.04 and 81,618.68 is: 112,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,150.12 : 201,685.04 = 81,618.68 : x
  2. Step 2: Convert to fraction form
    146,150.12/201,685.04 = 81,618.68/x
  3. Step 3: Cross multiply
    146,150.12x = 201,685.04 × 81,618.68
  4. Step 4: Simplify right side
    146,150.12x = 16,461,265,630.10
  5. Step 5: Solve for x
    x = 16,461,265,630.10/146,150.12
  6. Step 6: Final answer
    x = 112,632.58

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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.