Home / 103,432.73-155,146.01-28,557.45

Finding the Fourth Proportional to 103,432.73, 155,146.01 and 28,557.45

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Solution

The fourth proportional to 103,432.73, 155,146.01 and 28,557.45 is: 42,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.73 : 155,146.01 = 28,557.45 : x
  2. Step 2: Convert to fraction form
    103,432.73/155,146.01 = 28,557.45/x
  3. Step 3: Cross multiply
    103,432.73x = 155,146.01 × 28,557.45
  4. Step 4: Simplify right side
    103,432.73x = 4,430,574,423.27
  5. Step 5: Solve for x
    x = 4,430,574,423.27/103,432.73
  6. Step 6: Final answer
    x = 42,835.32

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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.