Home / 159,068.25-219,519.32-87,453.45

Finding the Fourth Proportional to 159,068.25, 219,519.32 and 87,453.45

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Solution

The fourth proportional to 159,068.25, 219,519.32 and 87,453.45 is: 120,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,068.25 : 219,519.32 = 87,453.45 : x
  2. Step 2: Convert to fraction form
    159,068.25/219,519.32 = 87,453.45/x
  3. Step 3: Cross multiply
    159,068.25x = 219,519.32 × 87,453.45
  4. Step 4: Simplify right side
    159,068.25x = 19,197,721,438.39
  5. Step 5: Solve for x
    x = 19,197,721,438.39/159,068.25
  6. Step 6: Final answer
    x = 120,688.58

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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.