Home / 190,437.12-285,557.76-111,706.56

Finding the Fourth Proportional to 190,437.12, 285,557.76 and 111,706.56

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Solution

The fourth proportional to 190,437.12, 285,557.76 and 111,706.56 is: 167,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,437.12 : 285,557.76 = 111,706.56 : x
  2. Step 2: Convert to fraction form
    190,437.12/285,557.76 = 111,706.56/x
  3. Step 3: Cross multiply
    190,437.12x = 285,557.76 × 111,706.56
  4. Step 4: Simplify right side
    190,437.12x = 31,898,675,050.91
  5. Step 5: Solve for x
    x = 31,898,675,050.91/190,437.12
  6. Step 6: Final answer
    x = 167,502.40

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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.