Home / 153,277.12-211,520.36-86,209.12

Finding the Fourth Proportional to 153,277.12, 211,520.36 and 86,209.12

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Solution

The fourth proportional to 153,277.12, 211,520.36 and 86,209.12 is: 118,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,277.12 : 211,520.36 = 86,209.12 : x
  2. Step 2: Convert to fraction form
    153,277.12/211,520.36 = 86,209.12/x
  3. Step 3: Cross multiply
    153,277.12x = 211,520.36 × 86,209.12
  4. Step 4: Simplify right side
    153,277.12x = 18,234,984,097.68
  5. Step 5: Solve for x
    x = 18,234,984,097.68/153,277.12
  6. Step 6: Final answer
    x = 118,967.42

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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.