Home / 112,913.68-155,809.65-65,182.41

Finding the Fourth Proportional to 112,913.68, 155,809.65 and 65,182.41

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Solution

The fourth proportional to 112,913.68, 155,809.65 and 65,182.41 is: 89,945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.68 : 155,809.65 = 65,182.41 : x
  2. Step 2: Convert to fraction form
    112,913.68/155,809.65 = 65,182.41/x
  3. Step 3: Cross multiply
    112,913.68x = 155,809.65 × 65,182.41
  4. Step 4: Simplify right side
    112,913.68x = 10,156,048,488.26
  5. Step 5: Solve for x
    x = 10,156,048,488.26/112,913.68
  6. Step 6: Final answer
    x = 89,945.24

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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.