Home / 101,285.65-151,969.35-45,087.36

Finding the Fourth Proportional to 101,285.65, 151,969.35 and 45,087.36

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Solution

The fourth proportional to 101,285.65, 151,969.35 and 45,087.36 is: 67,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,285.65 : 151,969.35 = 45,087.36 : x
  2. Step 2: Convert to fraction form
    101,285.65/151,969.35 = 45,087.36/x
  3. Step 3: Cross multiply
    101,285.65x = 151,969.35 × 45,087.36
  4. Step 4: Simplify right side
    101,285.65x = 6,851,896,792.42
  5. Step 5: Solve for x
    x = 6,851,896,792.42/101,285.65
  6. Step 6: Final answer
    x = 67,649.24

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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.