Home / 88,140.48-121,724.64-75,491.52

Finding the Fourth Proportional to 88,140.48, 121,724.64 and 75,491.52

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Solution

The fourth proportional to 88,140.48, 121,724.64 and 75,491.52 is: 104,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140.48 : 121,724.64 = 75,491.52 : x
  2. Step 2: Convert to fraction form
    88,140.48/121,724.64 = 75,491.52/x
  3. Step 3: Cross multiply
    88,140.48x = 121,724.64 × 75,491.52
  4. Step 4: Simplify right side
    88,140.48x = 9,189,178,095.05
  5. Step 5: Solve for x
    x = 9,189,178,095.05/88,140.48
  6. Step 6: Final answer
    x = 104,256.05

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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.