Home / 103,014.96-142,136.28-58,302.96

Finding the Fourth Proportional to 103,014.96, 142,136.28 and 58,302.96

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Solution

The fourth proportional to 103,014.96, 142,136.28 and 58,302.96 is: 80,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,014.96 : 142,136.28 = 58,302.96 : x
  2. Step 2: Convert to fraction form
    103,014.96/142,136.28 = 58,302.96/x
  3. Step 3: Cross multiply
    103,014.96x = 142,136.28 × 58,302.96
  4. Step 4: Simplify right side
    103,014.96x = 8,286,965,847.39
  5. Step 5: Solve for x
    x = 8,286,965,847.39/103,014.96
  6. Step 6: Final answer
    x = 80,444.30

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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.