Home / 209,125.47-288,588.08-117,238.66

Finding the Fourth Proportional to 209,125.47, 288,588.08 and 117,238.66

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Solution

The fourth proportional to 209,125.47, 288,588.08 and 117,238.66 is: 161,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,125.47 : 288,588.08 = 117,238.66 : x
  2. Step 2: Convert to fraction form
    209,125.47/288,588.08 = 117,238.66/x
  3. Step 3: Cross multiply
    209,125.47x = 288,588.08 × 117,238.66
  4. Step 4: Simplify right side
    209,125.47x = 33,833,679,565.71
  5. Step 5: Solve for x
    x = 33,833,679,565.71/209,125.47
  6. Step 6: Final answer
    x = 161,786.51

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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.