Home / 105,426.99-145,536.75-67,237.79

Finding the Fourth Proportional to 105,426.99, 145,536.75 and 67,237.79

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Solution

The fourth proportional to 105,426.99, 145,536.75 and 67,237.79 is: 92,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,426.99 : 145,536.75 = 67,237.79 : x
  2. Step 2: Convert to fraction form
    105,426.99/145,536.75 = 67,237.79/x
  3. Step 3: Cross multiply
    105,426.99x = 145,536.75 × 67,237.79
  4. Step 4: Simplify right side
    105,426.99x = 9,785,568,706.10
  5. Step 5: Solve for x
    x = 9,785,568,706.10/105,426.99
  6. Step 6: Final answer
    x = 92,818.44

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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.