Home / 154,036.28-212,567.72-86,054.24

Finding the Fourth Proportional to 154,036.28, 212,567.72 and 86,054.24

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Solution

The fourth proportional to 154,036.28, 212,567.72 and 86,054.24 is: 118,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,036.28 : 212,567.72 = 86,054.24 : x
  2. Step 2: Convert to fraction form
    154,036.28/212,567.72 = 86,054.24/x
  3. Step 3: Cross multiply
    154,036.28x = 212,567.72 × 86,054.24
  4. Step 4: Simplify right side
    154,036.28x = 18,292,353,694.28
  5. Step 5: Solve for x
    x = 18,292,353,694.28/154,036.28
  6. Step 6: Final answer
    x = 118,753.54

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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.