Home / 103,544.01-142,538.13-76,635.81

Finding the Fourth Proportional to 103,544.01, 142,538.13 and 76,635.81

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Solution

The fourth proportional to 103,544.01, 142,538.13 and 76,635.81 is: 105,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,544.01 : 142,538.13 = 76,635.81 : x
  2. Step 2: Convert to fraction form
    103,544.01/142,538.13 = 76,635.81/x
  3. Step 3: Cross multiply
    103,544.01x = 142,538.13 × 76,635.81
  4. Step 4: Simplify right side
    103,544.01x = 10,923,525,048.44
  5. Step 5: Solve for x
    x = 10,923,525,048.44/103,544.01
  6. Step 6: Final answer
    x = 105,496.45

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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.