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Finding the Fourth Proportional to 112,258.80, 154,919.40 and 61,957.68

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Solution

The fourth proportional to 112,258.80, 154,919.40 and 61,957.68 is: 85,502.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,258.80 : 154,919.40 = 61,957.68 : x
  2. Step 2: Convert to fraction form
    112,258.80/154,919.40 = 61,957.68/x
  3. Step 3: Cross multiply
    112,258.80x = 154,919.40 × 61,957.68
  4. Step 4: Simplify right side
    112,258.80x = 9,598,446,610.99
  5. Step 5: Solve for x
    x = 9,598,446,610.99/112,258.80
  6. Step 6: Final answer
    x = 85,502.84

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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.