Home / 159,085.37-219,539.28-87,465.89

Finding the Fourth Proportional to 159,085.37, 219,539.28 and 87,465.89

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Solution

The fourth proportional to 159,085.37, 219,539.28 and 87,465.89 is: 120,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,085.37 : 219,539.28 = 87,465.89 : x
  2. Step 2: Convert to fraction form
    159,085.37/219,539.28 = 87,465.89/x
  3. Step 3: Cross multiply
    159,085.37x = 219,539.28 × 87,465.89
  4. Step 4: Simplify right side
    159,085.37x = 19,202,198,515.16
  5. Step 5: Solve for x
    x = 19,202,198,515.16/159,085.37
  6. Step 6: Final answer
    x = 120,703.74

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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.