Home / 155,408.70-233,113.05-66,647.10

Finding the Fourth Proportional to 155,408.70, 233,113.05 and 66,647.10

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Solution

The fourth proportional to 155,408.70, 233,113.05 and 66,647.10 is: 99,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,408.70 : 233,113.05 = 66,647.10 : x
  2. Step 2: Convert to fraction form
    155,408.70/233,113.05 = 66,647.10/x
  3. Step 3: Cross multiply
    155,408.70x = 233,113.05 × 66,647.10
  4. Step 4: Simplify right side
    155,408.70x = 15,536,308,754.66
  5. Step 5: Solve for x
    x = 15,536,308,754.66/155,408.70
  6. Step 6: Final answer
    x = 99,970.65

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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.