Home / 105,537.60-145,641.96-57,790.98

Finding the Fourth Proportional to 105,537.60, 145,641.96 and 57,790.98

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Solution

The fourth proportional to 105,537.60, 145,641.96 and 57,790.98 is: 79,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,537.60 : 145,641.96 = 57,790.98 : x
  2. Step 2: Convert to fraction form
    105,537.60/145,641.96 = 57,790.98/x
  3. Step 3: Cross multiply
    105,537.60x = 145,641.96 × 57,790.98
  4. Step 4: Simplify right side
    105,537.60x = 8,416,791,597.52
  5. Step 5: Solve for x
    x = 8,416,791,597.52/105,537.60
  6. Step 6: Final answer
    x = 79,751.59

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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.