Home / 157,570.68-236,158.90-78,706.92

Finding the Fourth Proportional to 157,570.68, 236,158.90 and 78,706.92

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Solution

The fourth proportional to 157,570.68, 236,158.90 and 78,706.92 is: 117,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,570.68 : 236,158.90 = 78,706.92 : x
  2. Step 2: Convert to fraction form
    157,570.68/236,158.90 = 78,706.92/x
  3. Step 3: Cross multiply
    157,570.68x = 236,158.90 × 78,706.92
  4. Step 4: Simplify right side
    157,570.68x = 18,587,339,649.59
  5. Step 5: Solve for x
    x = 18,587,339,649.59/157,570.68
  6. Step 6: Final answer
    x = 117,961.92

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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.