Home / 103,191.68-142,404.39-60,172.91

Finding the Fourth Proportional to 103,191.68, 142,404.39 and 60,172.91

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Solution

The fourth proportional to 103,191.68, 142,404.39 and 60,172.91 is: 83,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,191.68 : 142,404.39 = 60,172.91 : x
  2. Step 2: Convert to fraction form
    103,191.68/142,404.39 = 60,172.91/x
  3. Step 3: Cross multiply
    103,191.68x = 142,404.39 × 60,172.91
  4. Step 4: Simplify right side
    103,191.68x = 8,568,886,543.07
  5. Step 5: Solve for x
    x = 8,568,886,543.07/103,191.68
  6. Step 6: Final answer
    x = 83,038.54

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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.