Home / 78,199.22-117,280.85-46,618.20

Finding the Fourth Proportional to 78,199.22, 117,280.85 and 46,618.20

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Solution

The fourth proportional to 78,199.22, 117,280.85 and 46,618.20 is: 69,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,199.22 : 117,280.85 = 46,618.20 : x
  2. Step 2: Convert to fraction form
    78,199.22/117,280.85 = 46,618.20/x
  3. Step 3: Cross multiply
    78,199.22x = 117,280.85 × 46,618.20
  4. Step 4: Simplify right side
    78,199.22x = 5,467,421,888.38
  5. Step 5: Solve for x
    x = 5,467,421,888.38/78,199.22
  6. Step 6: Final answer
    x = 69,916.58

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1.5x scale

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.