Home / 121,699.20-182,462.40-46,790.40

Finding the Fourth Proportional to 121,699.20, 182,462.40 and 46,790.40

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Solution

The fourth proportional to 121,699.20, 182,462.40 and 46,790.40 is: 70,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,699.20 : 182,462.40 = 46,790.40 : x
  2. Step 2: Convert to fraction form
    121,699.20/182,462.40 = 46,790.40/x
  3. Step 3: Cross multiply
    121,699.20x = 182,462.40 × 46,790.40
  4. Step 4: Simplify right side
    121,699.20x = 8,537,488,680.96
  5. Step 5: Solve for x
    x = 8,537,488,680.96/121,699.20
  6. Step 6: Final answer
    x = 70,152.38

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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.