Home / 136,255.46-188,065.90-105,567.84

Finding the Fourth Proportional to 136,255.46, 188,065.90 and 105,567.84

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Solution

The fourth proportional to 136,255.46, 188,065.90 and 105,567.84 is: 145,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,255.46 : 188,065.90 = 105,567.84 : x
  2. Step 2: Convert to fraction form
    136,255.46/188,065.90 = 105,567.84/x
  3. Step 3: Cross multiply
    136,255.46x = 188,065.90 × 105,567.84
  4. Step 4: Simplify right side
    136,255.46x = 19,853,710,840.66
  5. Step 5: Solve for x
    x = 19,853,710,840.66/136,255.46
  6. Step 6: Final answer
    x = 145,709.47

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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.