Home / 112,161.45-154,778.51-61,860.45

Finding the Fourth Proportional to 112,161.45, 154,778.51 and 61,860.45

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Solution

The fourth proportional to 112,161.45, 154,778.51 and 61,860.45 is: 85,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,161.45 : 154,778.51 = 61,860.45 : x
  2. Step 2: Convert to fraction form
    112,161.45/154,778.51 = 61,860.45/x
  3. Step 3: Cross multiply
    112,161.45x = 154,778.51 × 61,860.45
  4. Step 4: Simplify right side
    112,161.45x = 9,574,667,969.63
  5. Step 5: Solve for x
    x = 9,574,667,969.63/112,161.45
  6. Step 6: Final answer
    x = 85,365.05

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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.