Home / 157,369.09-217,166.61-85,749.70

Finding the Fourth Proportional to 157,369.09, 217,166.61 and 85,749.70

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Solution

The fourth proportional to 157,369.09, 217,166.61 and 85,749.70 is: 118,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,369.09 : 217,166.61 = 85,749.70 : x
  2. Step 2: Convert to fraction form
    157,369.09/217,166.61 = 85,749.70/x
  3. Step 3: Cross multiply
    157,369.09x = 217,166.61 × 85,749.70
  4. Step 4: Simplify right side
    157,369.09x = 18,621,971,657.52
  5. Step 5: Solve for x
    x = 18,621,971,657.52/157,369.09
  6. Step 6: Final answer
    x = 118,333.10

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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.