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Finding the Fourth Proportional to 124,432.40, 186,389.40 and 103,696.40

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Solution

The fourth proportional to 124,432.40, 186,389.40 and 103,696.40 is: 155,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,432.40 : 186,389.40 = 103,696.40 : x
  2. Step 2: Convert to fraction form
    124,432.40/186,389.40 = 103,696.40/x
  3. Step 3: Cross multiply
    124,432.40x = 186,389.40 × 103,696.40
  4. Step 4: Simplify right side
    124,432.40x = 19,327,909,778.16
  5. Step 5: Solve for x
    x = 19,327,909,778.16/124,432.40
  6. Step 6: Final answer
    x = 155,328.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.