Home / 111,487.04-153,841.86-66,157.22

Finding the Fourth Proportional to 111,487.04, 153,841.86 and 66,157.22

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Solution

The fourth proportional to 111,487.04, 153,841.86 and 66,157.22 is: 91,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.04 : 153,841.86 = 66,157.22 : x
  2. Step 2: Convert to fraction form
    111,487.04/153,841.86 = 66,157.22/x
  3. Step 3: Cross multiply
    111,487.04x = 153,841.86 × 66,157.22
  4. Step 4: Simplify right side
    111,487.04x = 10,177,749,008.02
  5. Step 5: Solve for x
    x = 10,177,749,008.02/111,487.04
  6. Step 6: Final answer
    x = 91,290.87

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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.