Home / 109,968.58-151,721.37-61,563.40

Finding the Fourth Proportional to 109,968.58, 151,721.37 and 61,563.40

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Solution

The fourth proportional to 109,968.58, 151,721.37 and 61,563.40 is: 84,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,968.58 : 151,721.37 = 61,563.40 : x
  2. Step 2: Convert to fraction form
    109,968.58/151,721.37 = 61,563.40/x
  3. Step 3: Cross multiply
    109,968.58x = 151,721.37 × 61,563.40
  4. Step 4: Simplify right side
    109,968.58x = 9,340,483,389.86
  5. Step 5: Solve for x
    x = 9,340,483,389.86/109,968.58
  6. Step 6: Final answer
    x = 84,937.75

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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.