Home / 103,478.10-155,253.60-50,852.40

Finding the Fourth Proportional to 103,478.10, 155,253.60 and 50,852.40

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Solution

The fourth proportional to 103,478.10, 155,253.60 and 50,852.40 is: 76,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,478.10 : 155,253.60 = 50,852.40 : x
  2. Step 2: Convert to fraction form
    103,478.10/155,253.60 = 50,852.40/x
  3. Step 3: Cross multiply
    103,478.10x = 155,253.60 × 50,852.40
  4. Step 4: Simplify right side
    103,478.10x = 7,895,018,168.64
  5. Step 5: Solve for x
    x = 7,895,018,168.64/103,478.10
  6. Step 6: Final answer
    x = 76,296.51

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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.