Home / 121,391.20-182,000.40-46,482.40

Finding the Fourth Proportional to 121,391.20, 182,000.40 and 46,482.40

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Solution

The fourth proportional to 121,391.20, 182,000.40 and 46,482.40 is: 69,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.20 : 182,000.40 = 46,482.40 : x
  2. Step 2: Convert to fraction form
    121,391.20/182,000.40 = 46,482.40/x
  3. Step 3: Cross multiply
    121,391.20x = 182,000.40 × 46,482.40
  4. Step 4: Simplify right side
    121,391.20x = 8,459,815,392.96
  5. Step 5: Solve for x
    x = 8,459,815,392.96/121,391.20
  6. Step 6: Final answer
    x = 69,690.52

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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.