Home / 147,386.40-221,080.56-53,853.60

Finding the Fourth Proportional to 147,386.40, 221,080.56 and 53,853.60

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Solution

The fourth proportional to 147,386.40, 221,080.56 and 53,853.60 is: 80,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.40 : 221,080.56 = 53,853.60 : x
  2. Step 2: Convert to fraction form
    147,386.40/221,080.56 = 53,853.60/x
  3. Step 3: Cross multiply
    147,386.40x = 221,080.56 × 53,853.60
  4. Step 4: Simplify right side
    147,386.40x = 11,905,984,046.02
  5. Step 5: Solve for x
    x = 11,905,984,046.02/147,386.40
  6. Step 6: Final answer
    x = 80,780.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.