Home / 109,619.68-151,277.52-61,873.12

Finding the Fourth Proportional to 109,619.68, 151,277.52 and 61,873.12

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Solution

The fourth proportional to 109,619.68, 151,277.52 and 61,873.12 is: 85,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,619.68 : 151,277.52 = 61,873.12 : x
  2. Step 2: Convert to fraction form
    109,619.68/151,277.52 = 61,873.12/x
  3. Step 3: Cross multiply
    109,619.68x = 151,277.52 × 61,873.12
  4. Step 4: Simplify right side
    109,619.68x = 9,360,012,148.26
  5. Step 5: Solve for x
    x = 9,360,012,148.26/109,619.68
  6. Step 6: Final answer
    x = 85,386.24

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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.