Home / 112,248.60-154,903.92-61,261.72

Finding the Fourth Proportional to 112,248.60, 154,903.92 and 61,261.72

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Solution

The fourth proportional to 112,248.60, 154,903.92 and 61,261.72 is: 84,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,248.60 : 154,903.92 = 61,261.72 : x
  2. Step 2: Convert to fraction form
    112,248.60/154,903.92 = 61,261.72/x
  3. Step 3: Cross multiply
    112,248.60x = 154,903.92 × 61,261.72
  4. Step 4: Simplify right side
    112,248.60x = 9,489,680,573.94
  5. Step 5: Solve for x
    x = 9,489,680,573.94/112,248.60
  6. Step 6: Final answer
    x = 84,541.64

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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.