Home / 154,038.04-212,551.45-86,046.60

Finding the Fourth Proportional to 154,038.04, 212,551.45 and 86,046.60

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Solution

The fourth proportional to 154,038.04, 212,551.45 and 86,046.60 is: 118,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,038.04 : 212,551.45 = 86,046.60 : x
  2. Step 2: Convert to fraction form
    154,038.04/212,551.45 = 86,046.60/x
  3. Step 3: Cross multiply
    154,038.04x = 212,551.45 × 86,046.60
  4. Step 4: Simplify right side
    154,038.04x = 18,289,330,784.54
  5. Step 5: Solve for x
    x = 18,289,330,784.54/154,038.04
  6. Step 6: Final answer
    x = 118,732.56

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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.