Home / 144,905.50-199,931.74-83,636.70

Finding the Fourth Proportional to 144,905.50, 199,931.74 and 83,636.70

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Solution

The fourth proportional to 144,905.50, 199,931.74 and 83,636.70 is: 115,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,905.50 : 199,931.74 = 83,636.70 : x
  2. Step 2: Convert to fraction form
    144,905.50/199,931.74 = 83,636.70/x
  3. Step 3: Cross multiply
    144,905.50x = 199,931.74 × 83,636.70
  4. Step 4: Simplify right side
    144,905.50x = 16,721,630,958.86
  5. Step 5: Solve for x
    x = 16,721,630,958.86/144,905.50
  6. Step 6: Final answer
    x = 115,396.80

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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.