Home / 112,102.50-154,704.69-61,804.74

Finding the Fourth Proportional to 112,102.50, 154,704.69 and 61,804.74

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Solution

The fourth proportional to 112,102.50, 154,704.69 and 61,804.74 is: 85,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,102.50 : 154,704.69 = 61,804.74 : x
  2. Step 2: Convert to fraction form
    112,102.50/154,704.69 = 61,804.74/x
  3. Step 3: Cross multiply
    112,102.50x = 154,704.69 × 61,804.74
  4. Step 4: Simplify right side
    112,102.50x = 9,561,483,142.23
  5. Step 5: Solve for x
    x = 9,561,483,142.23/112,102.50
  6. Step 6: Final answer
    x = 85,292.33

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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.