Home / 105,343.74-145,371.57-62,325.45

Finding the Fourth Proportional to 105,343.74, 145,371.57 and 62,325.45

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Solution

The fourth proportional to 105,343.74, 145,371.57 and 62,325.45 is: 86,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,343.74 : 145,371.57 = 62,325.45 : x
  2. Step 2: Convert to fraction form
    105,343.74/145,371.57 = 62,325.45/x
  3. Step 3: Cross multiply
    105,343.74x = 145,371.57 × 62,325.45
  4. Step 4: Simplify right side
    105,343.74x = 9,060,348,517.46
  5. Step 5: Solve for x
    x = 9,060,348,517.46/105,343.74
  6. Step 6: Final answer
    x = 86,007.47

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Why These Related Problems?

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