Home / 120,931.18-181,398.60-46,055.47

Finding the Fourth Proportional to 120,931.18, 181,398.60 and 46,055.47

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Solution

The fourth proportional to 120,931.18, 181,398.60 and 46,055.47 is: 69,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,931.18 : 181,398.60 = 46,055.47 : x
  2. Step 2: Convert to fraction form
    120,931.18/181,398.60 = 46,055.47/x
  3. Step 3: Cross multiply
    120,931.18x = 181,398.60 × 46,055.47
  4. Step 4: Simplify right side
    120,931.18x = 8,354,397,780.34
  5. Step 5: Solve for x
    x = 8,354,397,780.34/120,931.18
  6. Step 6: Final answer
    x = 69,083.90

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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.