Home / 157,400.55-217,206.42-85,779.03

Finding the Fourth Proportional to 157,400.55, 217,206.42 and 85,779.03

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Solution

The fourth proportional to 157,400.55, 217,206.42 and 85,779.03 is: 118,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,400.55 : 217,206.42 = 85,779.03 : x
  2. Step 2: Convert to fraction form
    157,400.55/217,206.42 = 85,779.03/x
  3. Step 3: Cross multiply
    157,400.55x = 217,206.42 × 85,779.03
  4. Step 4: Simplify right side
    157,400.55x = 18,631,756,017.37
  5. Step 5: Solve for x
    x = 18,631,756,017.37/157,400.55
  6. Step 6: Final answer
    x = 118,371.61

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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.