Home / 113,438.44-156,547.78-68,118.33

Finding the Fourth Proportional to 113,438.44, 156,547.78 and 68,118.33

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Solution

The fourth proportional to 113,438.44, 156,547.78 and 68,118.33 is: 94,004.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.44 : 156,547.78 = 68,118.33 : x
  2. Step 2: Convert to fraction form
    113,438.44/156,547.78 = 68,118.33/x
  3. Step 3: Cross multiply
    113,438.44x = 156,547.78 × 68,118.33
  4. Step 4: Simplify right side
    113,438.44x = 10,663,773,338.81
  5. Step 5: Solve for x
    x = 10,663,773,338.81/113,438.44
  6. Step 6: Final answer
    x = 94,004.94

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1.5x scale

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.