Home / 111,528.20-153,903.62-63,132.32

Finding the Fourth Proportional to 111,528.20, 153,903.62 and 63,132.32

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Solution

The fourth proportional to 111,528.20, 153,903.62 and 63,132.32 is: 87,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,528.20 : 153,903.62 = 63,132.32 : x
  2. Step 2: Convert to fraction form
    111,528.20/153,903.62 = 63,132.32/x
  3. Step 3: Cross multiply
    111,528.20x = 153,903.62 × 63,132.32
  4. Step 4: Simplify right side
    111,528.20x = 9,716,292,587.00
  5. Step 5: Solve for x
    x = 9,716,292,587.00/111,528.20
  6. Step 6: Final answer
    x = 87,119.60

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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.