Home / 383,938.11-575,841.56-103,389.75

Finding the Fourth Proportional to 383,938.11, 575,841.56 and 103,389.75

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Solution

The fourth proportional to 383,938.11, 575,841.56 and 103,389.75 is: 155,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,938.11 : 575,841.56 = 103,389.75 : x
  2. Step 2: Convert to fraction form
    383,938.11/575,841.56 = 103,389.75/x
  3. Step 3: Cross multiply
    383,938.11x = 575,841.56 × 103,389.75
  4. Step 4: Simplify right side
    383,938.11x = 59,536,114,411.06
  5. Step 5: Solve for x
    x = 59,536,114,411.06/383,938.11
  6. Step 6: Final answer
    x = 155,066.96

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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.