Home / 153,089.12-211,270.20-85,107.23

Finding the Fourth Proportional to 153,089.12, 211,270.20 and 85,107.23

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Solution

The fourth proportional to 153,089.12, 211,270.20 and 85,107.23 is: 117,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,089.12 : 211,270.20 = 85,107.23 : x
  2. Step 2: Convert to fraction form
    153,089.12/211,270.20 = 85,107.23/x
  3. Step 3: Cross multiply
    153,089.12x = 211,270.20 × 85,107.23
  4. Step 4: Simplify right side
    153,089.12x = 17,980,620,762.60
  5. Step 5: Solve for x
    x = 17,980,620,762.60/153,089.12
  6. Step 6: Final answer
    x = 117,451.98

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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.