Home / 102,383.10-153,246.60-80,075.70

Finding the Fourth Proportional to 102,383.10, 153,246.60 and 80,075.70

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Solution

The fourth proportional to 102,383.10, 153,246.60 and 80,075.70 is: 119,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,383.10 : 153,246.60 = 80,075.70 : x
  2. Step 2: Convert to fraction form
    102,383.10/153,246.60 = 80,075.70/x
  3. Step 3: Cross multiply
    102,383.10x = 153,246.60 × 80,075.70
  4. Step 4: Simplify right side
    102,383.10x = 12,271,328,767.62
  5. Step 5: Solve for x
    x = 12,271,328,767.62/102,383.10
  6. Step 6: Final answer
    x = 119,856.98

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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.