Home / 105,140.68-145,089.04-59,814.39

Finding the Fourth Proportional to 105,140.68, 145,089.04 and 59,814.39

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Solution

The fourth proportional to 105,140.68, 145,089.04 and 59,814.39 is: 82,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,140.68 : 145,089.04 = 59,814.39 : x
  2. Step 2: Convert to fraction form
    105,140.68/145,089.04 = 59,814.39/x
  3. Step 3: Cross multiply
    105,140.68x = 145,089.04 × 59,814.39
  4. Step 4: Simplify right side
    105,140.68x = 8,678,412,423.29
  5. Step 5: Solve for x
    x = 8,678,412,423.29/105,140.68
  6. Step 6: Final answer
    x = 82,540.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.