Home / 136,474.20-204,638.40-47,730.60

Finding the Fourth Proportional to 136,474.20, 204,638.40 and 47,730.60

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Solution

The fourth proportional to 136,474.20, 204,638.40 and 47,730.60 is: 71,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,474.20 : 204,638.40 = 47,730.60 : x
  2. Step 2: Convert to fraction form
    136,474.20/204,638.40 = 47,730.60/x
  3. Step 3: Cross multiply
    136,474.20x = 204,638.40 × 47,730.60
  4. Step 4: Simplify right side
    136,474.20x = 9,767,513,615.04
  5. Step 5: Solve for x
    x = 9,767,513,615.04/136,474.20
  6. Step 6: Final answer
    x = 71,570.40

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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.