Home / 105,681.39-158,542.80-39,122.07

Finding the Fourth Proportional to 105,681.39, 158,542.80 and 39,122.07

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Solution

The fourth proportional to 105,681.39, 158,542.80 and 39,122.07 is: 58,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,681.39 : 158,542.80 = 39,122.07 : x
  2. Step 2: Convert to fraction form
    105,681.39/158,542.80 = 39,122.07/x
  3. Step 3: Cross multiply
    105,681.39x = 158,542.80 × 39,122.07
  4. Step 4: Simplify right side
    105,681.39x = 6,202,522,519.60
  5. Step 5: Solve for x
    x = 6,202,522,519.60/105,681.39
  6. Step 6: Final answer
    x = 58,690.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.