Home / 209,130.45-288,601.85-113,637.14

Finding the Fourth Proportional to 209,130.45, 288,601.85 and 113,637.14

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Solution

The fourth proportional to 209,130.45, 288,601.85 and 113,637.14 is: 156,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.45 : 288,601.85 = 113,637.14 : x
  2. Step 2: Convert to fraction form
    209,130.45/288,601.85 = 113,637.14/x
  3. Step 3: Cross multiply
    209,130.45x = 288,601.85 × 113,637.14
  4. Step 4: Simplify right side
    209,130.45x = 32,795,888,986.03
  5. Step 5: Solve for x
    x = 32,795,888,986.03/209,130.45
  6. Step 6: Final answer
    x = 156,820.25

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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.