Home / 102,447.56-141,386.10-57,119.42

Finding the Fourth Proportional to 102,447.56, 141,386.10 and 57,119.42

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Solution

The fourth proportional to 102,447.56, 141,386.10 and 57,119.42 is: 78,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,447.56 : 141,386.10 = 57,119.42 : x
  2. Step 2: Convert to fraction form
    102,447.56/141,386.10 = 57,119.42/x
  3. Step 3: Cross multiply
    102,447.56x = 141,386.10 × 57,119.42
  4. Step 4: Simplify right side
    102,447.56x = 8,075,892,028.06
  5. Step 5: Solve for x
    x = 8,075,892,028.06/102,447.56
  6. Step 6: Final answer
    x = 78,829.52

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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.