Home / 85,271.49-117,685.56-70,906.61

Finding the Fourth Proportional to 85,271.49, 117,685.56 and 70,906.61

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Solution

The fourth proportional to 85,271.49, 117,685.56 and 70,906.61 is: 97,860.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.49 : 117,685.56 = 70,906.61 : x
  2. Step 2: Convert to fraction form
    85,271.49/117,685.56 = 70,906.61/x
  3. Step 3: Cross multiply
    85,271.49x = 117,685.56 × 70,906.61
  4. Step 4: Simplify right side
    85,271.49x = 8,344,683,162.59
  5. Step 5: Solve for x
    x = 8,344,683,162.59/85,271.49
  6. Step 6: Final answer
    x = 97,860.18

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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.