Home / 103,319.60-142,544.40-67,530.26

Finding the Fourth Proportional to 103,319.60, 142,544.40 and 67,530.26

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Solution

The fourth proportional to 103,319.60, 142,544.40 and 67,530.26 is: 93,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,319.60 : 142,544.40 = 67,530.26 : x
  2. Step 2: Convert to fraction form
    103,319.60/142,544.40 = 67,530.26/x
  3. Step 3: Cross multiply
    103,319.60x = 142,544.40 × 67,530.26
  4. Step 4: Simplify right side
    103,319.60x = 9,626,060,393.54
  5. Step 5: Solve for x
    x = 9,626,060,393.54/103,319.60
  6. Step 6: Final answer
    x = 93,167.81

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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.