Home / 115,412.85-159,296.30-67,681.58

Finding the Fourth Proportional to 115,412.85, 159,296.30 and 67,681.58

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Solution

The fourth proportional to 115,412.85, 159,296.30 and 67,681.58 is: 93,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,412.85 : 159,296.30 = 67,681.58 : x
  2. Step 2: Convert to fraction form
    115,412.85/159,296.30 = 67,681.58/x
  3. Step 3: Cross multiply
    115,412.85x = 159,296.30 × 67,681.58
  4. Step 4: Simplify right side
    115,412.85x = 10,781,424,137.26
  5. Step 5: Solve for x
    x = 10,781,424,137.26/115,412.85
  6. Step 6: Final answer
    x = 93,416.15

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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.