Home / 145,711.61-218,548.28-45,872.33

Finding the Fourth Proportional to 145,711.61, 218,548.28 and 45,872.33

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Solution

The fourth proportional to 145,711.61, 218,548.28 and 45,872.33 is: 68,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,711.61 : 218,548.28 = 45,872.33 : x
  2. Step 2: Convert to fraction form
    145,711.61/218,548.28 = 45,872.33/x
  3. Step 3: Cross multiply
    145,711.61x = 218,548.28 × 45,872.33
  4. Step 4: Simplify right side
    145,711.61x = 10,025,317,585.00
  5. Step 5: Solve for x
    x = 10,025,317,585.00/145,711.61
  6. Step 6: Final answer
    x = 68,802.46

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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.