Home / 163,771.32-245,657.10-45,442.78

Finding the Fourth Proportional to 163,771.32, 245,657.10 and 45,442.78

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Solution

The fourth proportional to 163,771.32, 245,657.10 and 45,442.78 is: 68,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,771.32 : 245,657.10 = 45,442.78 : x
  2. Step 2: Convert to fraction form
    163,771.32/245,657.10 = 45,442.78/x
  3. Step 3: Cross multiply
    163,771.32x = 245,657.10 × 45,442.78
  4. Step 4: Simplify right side
    163,771.32x = 11,163,340,095.24
  5. Step 5: Solve for x
    x = 11,163,340,095.24/163,771.32
  6. Step 6: Final answer
    x = 68,164.19

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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.