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Finding the Fourth Proportional to 147,374.60, 221,292.30 and 85,166.60

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Solution

The fourth proportional to 147,374.60, 221,292.30 and 85,166.60 is: 127,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,374.60 : 221,292.30 = 85,166.60 : x
  2. Step 2: Convert to fraction form
    147,374.60/221,292.30 = 85,166.60/x
  3. Step 3: Cross multiply
    147,374.60x = 221,292.30 × 85,166.60
  4. Step 4: Simplify right side
    147,374.60x = 18,846,712,797.18
  5. Step 5: Solve for x
    x = 18,846,712,797.18/147,374.60
  6. Step 6: Final answer
    x = 127,883.05

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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.