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Finding the Fourth Proportional to 107,172.86, 160,756.86 and 28,292.64

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Solution

The fourth proportional to 107,172.86, 160,756.86 and 28,292.64 is: 42,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,172.86 : 160,756.86 = 28,292.64 : x
  2. Step 2: Convert to fraction form
    107,172.86/160,756.86 = 28,292.64/x
  3. Step 3: Cross multiply
    107,172.86x = 160,756.86 × 28,292.64
  4. Step 4: Simplify right side
    107,172.86x = 4,548,235,967.51
  5. Step 5: Solve for x
    x = 4,548,235,967.51/107,172.86
  6. Step 6: Final answer
    x = 42,438.32

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1.5x scale

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.