Home / 121,328.42-181,867.68-46,428.12

Finding the Fourth Proportional to 121,328.42, 181,867.68 and 46,428.12

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Solution

The fourth proportional to 121,328.42, 181,867.68 and 46,428.12 is: 69,594.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,328.42 : 181,867.68 = 46,428.12 : x
  2. Step 2: Convert to fraction form
    121,328.42/181,867.68 = 46,428.12/x
  3. Step 3: Cross multiply
    121,328.42x = 181,867.68 × 46,428.12
  4. Step 4: Simplify right side
    121,328.42x = 8,443,774,471.16
  5. Step 5: Solve for x
    x = 8,443,774,471.16/121,328.42
  6. Step 6: Final answer
    x = 69,594.37

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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.