Home / 112,055.40-154,636.45-61,754.40

Finding the Fourth Proportional to 112,055.40, 154,636.45 and 61,754.40

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Solution

The fourth proportional to 112,055.40, 154,636.45 and 61,754.40 is: 85,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,055.40 : 154,636.45 = 61,754.40 : x
  2. Step 2: Convert to fraction form
    112,055.40/154,636.45 = 61,754.40/x
  3. Step 3: Cross multiply
    112,055.40x = 154,636.45 × 61,754.40
  4. Step 4: Simplify right side
    112,055.40x = 9,549,481,187.88
  5. Step 5: Solve for x
    x = 9,549,481,187.88/112,055.40
  6. Step 6: Final answer
    x = 85,221.07

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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.