Home / 103,567.20-155,350.80-102,530.40

Finding the Fourth Proportional to 103,567.20, 155,350.80 and 102,530.40

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Solution

The fourth proportional to 103,567.20, 155,350.80 and 102,530.40 is: 153,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,567.20 : 155,350.80 = 102,530.40 : x
  2. Step 2: Convert to fraction form
    103,567.20/155,350.80 = 102,530.40/x
  3. Step 3: Cross multiply
    103,567.20x = 155,350.80 × 102,530.40
  4. Step 4: Simplify right side
    103,567.20x = 15,928,179,664.32
  5. Step 5: Solve for x
    x = 15,928,179,664.32/103,567.20
  6. Step 6: Final answer
    x = 153,795.60

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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.