Home / 125,089.31-187,653.41-42,002.75

Finding the Fourth Proportional to 125,089.31, 187,653.41 and 42,002.75

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Solution

The fourth proportional to 125,089.31, 187,653.41 and 42,002.75 is: 63,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,089.31 : 187,653.41 = 42,002.75 : x
  2. Step 2: Convert to fraction form
    125,089.31/187,653.41 = 42,002.75/x
  3. Step 3: Cross multiply
    125,089.31x = 187,653.41 × 42,002.75
  4. Step 4: Simplify right side
    125,089.31x = 7,881,959,683.51
  5. Step 5: Solve for x
    x = 7,881,959,683.51/125,089.31
  6. Step 6: Final answer
    x = 63,010.66

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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.