Home / 121,147.84-181,586.40-61,808.32

Finding the Fourth Proportional to 121,147.84, 181,586.40 and 61,808.32

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Solution

The fourth proportional to 121,147.84, 181,586.40 and 61,808.32 is: 92,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,147.84 : 181,586.40 = 61,808.32 : x
  2. Step 2: Convert to fraction form
    121,147.84/181,586.40 = 61,808.32/x
  3. Step 3: Cross multiply
    121,147.84x = 181,586.40 × 61,808.32
  4. Step 4: Simplify right side
    121,147.84x = 11,223,550,318.85
  5. Step 5: Solve for x
    x = 11,223,550,318.85/121,147.84
  6. Step 6: Final answer
    x = 92,643.42

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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.