Home / 105,275.36-145,266-67,600.64

Finding the Fourth Proportional to 105,275.36, 145,266 and 67,600.64

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Solution

The fourth proportional to 105,275.36, 145,266 and 67,600.64 is: 93,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.36 : 145,266 = 67,600.64 : x
  2. Step 2: Convert to fraction form
    105,275.36/145,266 = 67,600.64/x
  3. Step 3: Cross multiply
    105,275.36x = 145,266 × 67,600.64
  4. Step 4: Simplify right side
    105,275.36x = 9,820,074,570.24
  5. Step 5: Solve for x
    x = 9,820,074,570.24/105,275.36
  6. Step 6: Final answer
    x = 93,279.90

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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.