Home / 118,453.57-163,360.11-98,278.50

Finding the Fourth Proportional to 118,453.57, 163,360.11 and 98,278.50

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Solution

The fourth proportional to 118,453.57, 163,360.11 and 98,278.50 is: 135,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,453.57 : 163,360.11 = 98,278.50 : x
  2. Step 2: Convert to fraction form
    118,453.57/163,360.11 = 98,278.50/x
  3. Step 3: Cross multiply
    118,453.57x = 163,360.11 × 98,278.50
  4. Step 4: Simplify right side
    118,453.57x = 16,054,786,570.64
  5. Step 5: Solve for x
    x = 16,054,786,570.64/118,453.57
  6. Step 6: Final answer
    x = 135,536.54

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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.