Home / 105,437.70-145,503.93-57,691.24

Finding the Fourth Proportional to 105,437.70, 145,503.93 and 57,691.24

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Solution

The fourth proportional to 105,437.70, 145,503.93 and 57,691.24 is: 79,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,437.70 : 145,503.93 = 57,691.24 : x
  2. Step 2: Convert to fraction form
    105,437.70/145,503.93 = 57,691.24/x
  3. Step 3: Cross multiply
    105,437.70x = 145,503.93 × 57,691.24
  4. Step 4: Simplify right side
    105,437.70x = 8,394,302,146.57
  5. Step 5: Solve for x
    x = 8,394,302,146.57/105,437.70
  6. Step 6: Final answer
    x = 79,613.86

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1.5x scale

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.