Home / 109,619.10-151,274.36-61,875.53

Finding the Fourth Proportional to 109,619.10, 151,274.36 and 61,875.53

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Solution

The fourth proportional to 109,619.10, 151,274.36 and 61,875.53 is: 85,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,619.10 : 151,274.36 = 61,875.53 : x
  2. Step 2: Convert to fraction form
    109,619.10/151,274.36 = 61,875.53/x
  3. Step 3: Cross multiply
    109,619.10x = 151,274.36 × 61,875.53
  4. Step 4: Simplify right side
    109,619.10x = 9,360,180,868.66
  5. Step 5: Solve for x
    x = 9,360,180,868.66/109,619.10
  6. Step 6: Final answer
    x = 85,388.23

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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.