Home / 103,041.60-142,202.75-57,716.93

Finding the Fourth Proportional to 103,041.60, 142,202.75 and 57,716.93

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Solution

The fourth proportional to 103,041.60, 142,202.75 and 57,716.93 is: 79,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,041.60 : 142,202.75 = 57,716.93 : x
  2. Step 2: Convert to fraction form
    103,041.60/142,202.75 = 57,716.93/x
  3. Step 3: Cross multiply
    103,041.60x = 142,202.75 × 57,716.93
  4. Step 4: Simplify right side
    103,041.60x = 8,207,506,167.56
  5. Step 5: Solve for x
    x = 8,207,506,167.56/103,041.60
  6. Step 6: Final answer
    x = 79,652.36

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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.