Home / 153,154.96-211,367.04-85,185.28

Finding the Fourth Proportional to 153,154.96, 211,367.04 and 85,185.28

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Solution

The fourth proportional to 153,154.96, 211,367.04 and 85,185.28 is: 117,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.96 : 211,367.04 = 85,185.28 : x
  2. Step 2: Convert to fraction form
    153,154.96/211,367.04 = 85,185.28/x
  3. Step 3: Cross multiply
    153,154.96x = 211,367.04 × 85,185.28
  4. Step 4: Simplify right side
    153,154.96x = 18,005,360,485.17
  5. Step 5: Solve for x
    x = 18,005,360,485.17/153,154.96
  6. Step 6: Final answer
    x = 117,563.03

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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.