Home / 133,485.51-200,278.31-69,403.53

Finding the Fourth Proportional to 133,485.51, 200,278.31 and 69,403.53

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Solution

The fourth proportional to 133,485.51, 200,278.31 and 69,403.53 is: 104,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,485.51 : 200,278.31 = 69,403.53 : x
  2. Step 2: Convert to fraction form
    133,485.51/200,278.31 = 69,403.53/x
  3. Step 3: Cross multiply
    133,485.51x = 200,278.31 × 69,403.53
  4. Step 4: Simplify right side
    133,485.51x = 13,900,021,349.42
  5. Step 5: Solve for x
    x = 13,900,021,349.42/133,485.51
  6. Step 6: Final answer
    x = 104,131.31

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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.