Home / 88,145.74-121,704.22-54,199.72

Finding the Fourth Proportional to 88,145.74, 121,704.22 and 54,199.72

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Solution

The fourth proportional to 88,145.74, 121,704.22 and 54,199.72 is: 74,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.74 : 121,704.22 = 54,199.72 : x
  2. Step 2: Convert to fraction form
    88,145.74/121,704.22 = 54,199.72/x
  3. Step 3: Cross multiply
    88,145.74x = 121,704.22 × 54,199.72
  4. Step 4: Simplify right side
    88,145.74x = 6,596,334,646.82
  5. Step 5: Solve for x
    x = 6,596,334,646.82/88,145.74
  6. Step 6: Final answer
    x = 74,834.41

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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.