Home / 345,140.57-517,709.44-105,253.77

Finding the Fourth Proportional to 345,140.57, 517,709.44 and 105,253.77

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Solution

The fourth proportional to 345,140.57, 517,709.44 and 105,253.77 is: 157,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,140.57 : 517,709.44 = 105,253.77 : x
  2. Step 2: Convert to fraction form
    345,140.57/517,709.44 = 105,253.77/x
  3. Step 3: Cross multiply
    345,140.57x = 517,709.44 × 105,253.77
  4. Step 4: Simplify right side
    345,140.57x = 54,490,867,878.37
  5. Step 5: Solve for x
    x = 54,490,867,878.37/345,140.57
  6. Step 6: Final answer
    x = 157,880.22

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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.