Home / 209,160.77-288,643.68-113,667.45

Finding the Fourth Proportional to 209,160.77, 288,643.68 and 113,667.45

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Solution

The fourth proportional to 209,160.77, 288,643.68 and 113,667.45 is: 156,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,160.77 : 288,643.68 = 113,667.45 : x
  2. Step 2: Convert to fraction form
    209,160.77/288,643.68 = 113,667.45/x
  3. Step 3: Cross multiply
    209,160.77x = 288,643.68 × 113,667.45
  4. Step 4: Simplify right side
    209,160.77x = 32,809,391,064.22
  5. Step 5: Solve for x
    x = 32,809,391,064.22/209,160.77
  6. Step 6: Final answer
    x = 156,862.07

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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.