Home / 117,938.48-162,728.76-98,895.28

Finding the Fourth Proportional to 117,938.48, 162,728.76 and 98,895.28

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Solution

The fourth proportional to 117,938.48, 162,728.76 and 98,895.28 is: 136,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,938.48 : 162,728.76 = 98,895.28 : x
  2. Step 2: Convert to fraction form
    117,938.48/162,728.76 = 98,895.28/x
  3. Step 3: Cross multiply
    117,938.48x = 162,728.76 × 98,895.28
  4. Step 4: Simplify right side
    117,938.48x = 16,093,106,284.25
  5. Step 5: Solve for x
    x = 16,093,106,284.25/117,938.48
  6. Step 6: Final answer
    x = 136,453.40

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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.