Home / 189,033.36-260,903.76-108,515.28

Finding the Fourth Proportional to 189,033.36, 260,903.76 and 108,515.28

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Solution

The fourth proportional to 189,033.36, 260,903.76 and 108,515.28 is: 149,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,033.36 : 260,903.76 = 108,515.28 : x
  2. Step 2: Convert to fraction form
    189,033.36/260,903.76 = 108,515.28/x
  3. Step 3: Cross multiply
    189,033.36x = 260,903.76 × 108,515.28
  4. Step 4: Simplify right side
    189,033.36x = 28,312,044,569.45
  5. Step 5: Solve for x
    x = 28,312,044,569.45/189,033.36
  6. Step 6: Final answer
    x = 149,772.74

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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.