Home / 157,484.45-217,329.58-85,865.67

Finding the Fourth Proportional to 157,484.45, 217,329.58 and 85,865.67

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Solution

The fourth proportional to 157,484.45, 217,329.58 and 85,865.67 is: 118,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,484.45 : 217,329.58 = 85,865.67 : x
  2. Step 2: Convert to fraction form
    157,484.45/217,329.58 = 85,865.67/x
  3. Step 3: Cross multiply
    157,484.45x = 217,329.58 × 85,865.67
  4. Step 4: Simplify right side
    157,484.45x = 18,661,149,997.52
  5. Step 5: Solve for x
    x = 18,661,149,997.52/157,484.45
  6. Step 6: Final answer
    x = 118,495.19

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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.