Home / 140,368.08-210,591.24-78,082.32

Finding the Fourth Proportional to 140,368.08, 210,591.24 and 78,082.32

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Solution

The fourth proportional to 140,368.08, 210,591.24 and 78,082.32 is: 117,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,368.08 : 210,591.24 = 78,082.32 : x
  2. Step 2: Convert to fraction form
    140,368.08/210,591.24 = 78,082.32/x
  3. Step 3: Cross multiply
    140,368.08x = 210,591.24 × 78,082.32
  4. Step 4: Simplify right side
    140,368.08x = 16,443,452,590.88
  5. Step 5: Solve for x
    x = 16,443,452,590.88/140,368.08
  6. Step 6: Final answer
    x = 117,145.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.