Home / 159,136.30-219,603.71-87,516.32

Finding the Fourth Proportional to 159,136.30, 219,603.71 and 87,516.32

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Solution

The fourth proportional to 159,136.30, 219,603.71 and 87,516.32 is: 120,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,136.30 : 219,603.71 = 87,516.32 : x
  2. Step 2: Convert to fraction form
    159,136.30/219,603.71 = 87,516.32/x
  3. Step 3: Cross multiply
    159,136.30x = 219,603.71 × 87,516.32
  4. Step 4: Simplify right side
    159,136.30x = 19,218,908,557.55
  5. Step 5: Solve for x
    x = 19,218,908,557.55/159,136.30
  6. Step 6: Final answer
    x = 120,770.11

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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.