Home / 188,438.32-260,085.90-115,903.55

Finding the Fourth Proportional to 188,438.32, 260,085.90 and 115,903.55

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Solution

The fourth proportional to 188,438.32, 260,085.90 and 115,903.55 is: 159,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,438.32 : 260,085.90 = 115,903.55 : x
  2. Step 2: Convert to fraction form
    188,438.32/260,085.90 = 115,903.55/x
  3. Step 3: Cross multiply
    188,438.32x = 260,085.90 × 115,903.55
  4. Step 4: Simplify right side
    188,438.32x = 30,144,878,535.43
  5. Step 5: Solve for x
    x = 30,144,878,535.43/188,438.32
  6. Step 6: Final answer
    x = 159,972.13

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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.