Home / 157,483.45-217,328.20-85,864.67

Finding the Fourth Proportional to 157,483.45, 217,328.20 and 85,864.67

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Solution

The fourth proportional to 157,483.45, 217,328.20 and 85,864.67 is: 118,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,483.45 : 217,328.20 = 85,864.67 : x
  2. Step 2: Convert to fraction form
    157,483.45/217,328.20 = 85,864.67/x
  3. Step 3: Cross multiply
    157,483.45x = 217,328.20 × 85,864.67
  4. Step 4: Simplify right side
    157,483.45x = 18,660,813,688.37
  5. Step 5: Solve for x
    x = 18,660,813,688.37/157,483.45
  6. Step 6: Final answer
    x = 118,493.81

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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.