Home / 190,468.14-285,758.04-85,263.72

Finding the Fourth Proportional to 190,468.14, 285,758.04 and 85,263.72

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Solution

The fourth proportional to 190,468.14, 285,758.04 and 85,263.72 is: 127,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,468.14 : 285,758.04 = 85,263.72 : x
  2. Step 2: Convert to fraction form
    190,468.14/285,758.04 = 85,263.72/x
  3. Step 3: Cross multiply
    190,468.14x = 285,758.04 × 85,263.72
  4. Step 4: Simplify right side
    190,468.14x = 24,364,793,510.31
  5. Step 5: Solve for x
    x = 24,364,793,510.31/190,468.14
  6. Step 6: Final answer
    x = 127,920.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.