Home / 154,039.59-212,567.04-86,043.06

Finding the Fourth Proportional to 154,039.59, 212,567.04 and 86,043.06

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Solution

The fourth proportional to 154,039.59, 212,567.04 and 86,043.06 is: 118,735.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,039.59 : 212,567.04 = 86,043.06 : x
  2. Step 2: Convert to fraction form
    154,039.59/212,567.04 = 86,043.06/x
  3. Step 3: Cross multiply
    154,039.59x = 212,567.04 × 86,043.06
  4. Step 4: Simplify right side
    154,039.59x = 18,289,918,576.74
  5. Step 5: Solve for x
    x = 18,289,918,576.74/154,039.59
  6. Step 6: Final answer
    x = 118,735.18

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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.