Home / 103,516.40-155,265.93-28,637.48

Finding the Fourth Proportional to 103,516.40, 155,265.93 and 28,637.48

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Solution

The fourth proportional to 103,516.40, 155,265.93 and 28,637.48 is: 42,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,516.40 : 155,265.93 = 28,637.48 : x
  2. Step 2: Convert to fraction form
    103,516.40/155,265.93 = 28,637.48/x
  3. Step 3: Cross multiply
    103,516.40x = 155,265.93 × 28,637.48
  4. Step 4: Simplify right side
    103,516.40x = 4,446,424,188.73
  5. Step 5: Solve for x
    x = 4,446,424,188.73/103,516.40
  6. Step 6: Final answer
    x = 42,953.82

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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.