Home / 112,088.15-154,679.54-61,101.35

Finding the Fourth Proportional to 112,088.15, 154,679.54 and 61,101.35

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Solution

The fourth proportional to 112,088.15, 154,679.54 and 61,101.35 is: 84,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,088.15 : 154,679.54 = 61,101.35 : x
  2. Step 2: Convert to fraction form
    112,088.15/154,679.54 = 61,101.35/x
  3. Step 3: Cross multiply
    112,088.15x = 154,679.54 × 61,101.35
  4. Step 4: Simplify right side
    112,088.15x = 9,451,128,405.87
  5. Step 5: Solve for x
    x = 9,451,128,405.87/112,088.15
  6. Step 6: Final answer
    x = 84,318.71

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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.