Home / 149,597.08-206,444.55-81,615.58

Finding the Fourth Proportional to 149,597.08, 206,444.55 and 81,615.58

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Solution

The fourth proportional to 149,597.08, 206,444.55 and 81,615.58 is: 112,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,597.08 : 206,444.55 = 81,615.58 : x
  2. Step 2: Convert to fraction form
    149,597.08/206,444.55 = 81,615.58/x
  3. Step 3: Cross multiply
    149,597.08x = 206,444.55 × 81,615.58
  4. Step 4: Simplify right side
    149,597.08x = 16,849,091,686.09
  5. Step 5: Solve for x
    x = 16,849,091,686.09/149,597.08
  6. Step 6: Final answer
    x = 112,629.82

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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.