Home / 153,177.24-211,403.58-86,109.24

Finding the Fourth Proportional to 153,177.24, 211,403.58 and 86,109.24

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Solution

The fourth proportional to 153,177.24, 211,403.58 and 86,109.24 is: 118,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,177.24 : 211,403.58 = 86,109.24 : x
  2. Step 2: Convert to fraction form
    153,177.24/211,403.58 = 86,109.24/x
  3. Step 3: Cross multiply
    153,177.24x = 211,403.58 × 86,109.24
  4. Step 4: Simplify right side
    153,177.24x = 18,203,801,607.08
  5. Step 5: Solve for x
    x = 18,203,801,607.08/153,177.24
  6. Step 6: Final answer
    x = 118,841.43

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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.