Home / 102,820.14-141,927.48-70,661.25

Finding the Fourth Proportional to 102,820.14, 141,927.48 and 70,661.25

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Solution

The fourth proportional to 102,820.14, 141,927.48 and 70,661.25 is: 97,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,820.14 : 141,927.48 = 70,661.25 : x
  2. Step 2: Convert to fraction form
    102,820.14/141,927.48 = 70,661.25/x
  3. Step 3: Cross multiply
    102,820.14x = 141,927.48 × 70,661.25
  4. Step 4: Simplify right side
    102,820.14x = 10,028,773,146.15
  5. Step 5: Solve for x
    x = 10,028,773,146.15/102,820.14
  6. Step 6: Final answer
    x = 97,537.05

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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.