Home / 109,018.26-163,495.80-42,443.55

Finding the Fourth Proportional to 109,018.26, 163,495.80 and 42,443.55

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Solution

The fourth proportional to 109,018.26, 163,495.80 and 42,443.55 is: 63,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,018.26 : 163,495.80 = 42,443.55 : x
  2. Step 2: Convert to fraction form
    109,018.26/163,495.80 = 42,443.55/x
  3. Step 3: Cross multiply
    109,018.26x = 163,495.80 × 42,443.55
  4. Step 4: Simplify right side
    109,018.26x = 6,939,342,162.09
  5. Step 5: Solve for x
    x = 6,939,342,162.09/109,018.26
  6. Step 6: Final answer
    x = 63,653.03

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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.