Home / 112,019.58-154,587.06-61,718.58

Finding the Fourth Proportional to 112,019.58, 154,587.06 and 61,718.58

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Solution

The fourth proportional to 112,019.58, 154,587.06 and 61,718.58 is: 85,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,019.58 : 154,587.06 = 61,718.58 : x
  2. Step 2: Convert to fraction form
    112,019.58/154,587.06 = 61,718.58/x
  3. Step 3: Cross multiply
    112,019.58x = 154,587.06 × 61,718.58
  4. Step 4: Simplify right side
    112,019.58x = 9,540,893,829.57
  5. Step 5: Solve for x
    x = 9,540,893,829.57/112,019.58
  6. Step 6: Final answer
    x = 85,171.66

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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.