Home / 143,217.60-214,534.80-73,136.40

Finding the Fourth Proportional to 143,217.60, 214,534.80 and 73,136.40

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Solution

The fourth proportional to 143,217.60, 214,534.80 and 73,136.40 is: 109,555.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,217.60 : 214,534.80 = 73,136.40 : x
  2. Step 2: Convert to fraction form
    143,217.60/214,534.80 = 73,136.40/x
  3. Step 3: Cross multiply
    143,217.60x = 214,534.80 × 73,136.40
  4. Step 4: Simplify right side
    143,217.60x = 15,690,302,946.72
  5. Step 5: Solve for x
    x = 15,690,302,946.72/143,217.60
  6. Step 6: Final answer
    x = 109,555.69

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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.