Home / 189,303.26-261,243.43-103,263.69

Finding the Fourth Proportional to 189,303.26, 261,243.43 and 103,263.69

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Solution

The fourth proportional to 189,303.26, 261,243.43 and 103,263.69 is: 142,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,303.26 : 261,243.43 = 103,263.69 : x
  2. Step 2: Convert to fraction form
    189,303.26/261,243.43 = 103,263.69/x
  3. Step 3: Cross multiply
    189,303.26x = 261,243.43 × 103,263.69
  4. Step 4: Simplify right side
    189,303.26x = 26,976,960,570.06
  5. Step 5: Solve for x
    x = 26,976,960,570.06/189,303.26
  6. Step 6: Final answer
    x = 142,506.58

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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.