Home / 112,101.52-154,701.15-61,802.32

Finding the Fourth Proportional to 112,101.52, 154,701.15 and 61,802.32

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Solution

The fourth proportional to 112,101.52, 154,701.15 and 61,802.32 is: 85,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,101.52 : 154,701.15 = 61,802.32 : x
  2. Step 2: Convert to fraction form
    112,101.52/154,701.15 = 61,802.32/x
  3. Step 3: Cross multiply
    112,101.52x = 154,701.15 × 61,802.32
  4. Step 4: Simplify right side
    112,101.52x = 9,560,889,048.66
  5. Step 5: Solve for x
    x = 9,560,889,048.66/112,101.52
  6. Step 6: Final answer
    x = 85,287.78

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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.