Home / 159,038.32-219,478.50-87,424.96

Finding the Fourth Proportional to 159,038.32, 219,478.50 and 87,424.96

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Solution

The fourth proportional to 159,038.32, 219,478.50 and 87,424.96 is: 120,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,038.32 : 219,478.50 = 87,424.96 : x
  2. Step 2: Convert to fraction form
    159,038.32/219,478.50 = 87,424.96/x
  3. Step 3: Cross multiply
    159,038.32x = 219,478.50 × 87,424.96
  4. Step 4: Simplify right side
    159,038.32x = 19,187,899,083.36
  5. Step 5: Solve for x
    x = 19,187,899,083.36/159,038.32
  6. Step 6: Final answer
    x = 120,649.53

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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.