Home / 105,631.25-145,771.13-60,919.25

Finding the Fourth Proportional to 105,631.25, 145,771.13 and 60,919.25

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Solution

The fourth proportional to 105,631.25, 145,771.13 and 60,919.25 is: 84,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,631.25 : 145,771.13 = 60,919.25 : x
  2. Step 2: Convert to fraction form
    105,631.25/145,771.13 = 60,919.25/x
  3. Step 3: Cross multiply
    105,631.25x = 145,771.13 × 60,919.25
  4. Step 4: Simplify right side
    105,631.25x = 8,880,267,911.25
  5. Step 5: Solve for x
    x = 8,880,267,911.25/105,631.25
  6. Step 6: Final answer
    x = 84,068.57

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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.