Home / 154,048.58-212,566.12-86,057.18

Finding the Fourth Proportional to 154,048.58, 212,566.12 and 86,057.18

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Solution

The fourth proportional to 154,048.58, 212,566.12 and 86,057.18 is: 118,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,048.58 : 212,566.12 = 86,057.18 : x
  2. Step 2: Convert to fraction form
    154,048.58/212,566.12 = 86,057.18/x
  3. Step 3: Cross multiply
    154,048.58x = 212,566.12 × 86,057.18
  4. Step 4: Simplify right side
    154,048.58x = 18,292,840,850.74
  5. Step 5: Solve for x
    x = 18,292,840,850.74/154,048.58
  6. Step 6: Final answer
    x = 118,747.22

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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.