Home / 139,125.36-208,730.16-50,420.64

Finding the Fourth Proportional to 139,125.36, 208,730.16 and 50,420.64

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Solution

The fourth proportional to 139,125.36, 208,730.16 and 50,420.64 is: 75,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,125.36 : 208,730.16 = 50,420.64 : x
  2. Step 2: Convert to fraction form
    139,125.36/208,730.16 = 50,420.64/x
  3. Step 3: Cross multiply
    139,125.36x = 208,730.16 × 50,420.64
  4. Step 4: Simplify right side
    139,125.36x = 10,524,308,254.50
  5. Step 5: Solve for x
    x = 10,524,308,254.50/139,125.36
  6. Step 6: Final answer
    x = 75,646.22

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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.