Home / 154,073.69-212,631.58-86,090.86

Finding the Fourth Proportional to 154,073.69, 212,631.58 and 86,090.86

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Solution

The fourth proportional to 154,073.69, 212,631.58 and 86,090.86 is: 118,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,073.69 : 212,631.58 = 86,090.86 : x
  2. Step 2: Convert to fraction form
    154,073.69/212,631.58 = 86,090.86/x
  3. Step 3: Cross multiply
    154,073.69x = 212,631.58 × 86,090.86
  4. Step 4: Simplify right side
    154,073.69x = 18,305,635,585.36
  5. Step 5: Solve for x
    x = 18,305,635,585.36/154,073.69
  6. Step 6: Final answer
    x = 118,810.91

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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.