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Finding the Fourth Proportional to 147,989.58, 204,231.15 and 84,325.74

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Solution

The fourth proportional to 147,989.58, 204,231.15 and 84,325.74 is: 116,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,989.58 : 204,231.15 = 84,325.74 : x
  2. Step 2: Convert to fraction form
    147,989.58/204,231.15 = 84,325.74/x
  3. Step 3: Cross multiply
    147,989.58x = 204,231.15 × 84,325.74
  4. Step 4: Simplify right side
    147,989.58x = 17,221,942,854.80
  5. Step 5: Solve for x
    x = 17,221,942,854.80/147,989.58
  6. Step 6: Final answer
    x = 116,372.67

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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.