Home / 103,428.18-154,903.23-61,783.38

Finding the Fourth Proportional to 103,428.18, 154,903.23 and 61,783.38

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Solution

The fourth proportional to 103,428.18, 154,903.23 and 61,783.38 is: 92,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,428.18 : 154,903.23 = 61,783.38 : x
  2. Step 2: Convert to fraction form
    103,428.18/154,903.23 = 61,783.38/x
  3. Step 3: Cross multiply
    103,428.18x = 154,903.23 × 61,783.38
  4. Step 4: Simplify right side
    103,428.18x = 9,570,445,122.32
  5. Step 5: Solve for x
    x = 9,570,445,122.32/103,428.18
  6. Step 6: Final answer
    x = 92,532.28

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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.