Home / 109,121.32-163,681.32-28,068.22

Finding the Fourth Proportional to 109,121.32, 163,681.32 and 28,068.22

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Solution

The fourth proportional to 109,121.32, 163,681.32 and 28,068.22 is: 42,102.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,121.32 : 163,681.32 = 28,068.22 : x
  2. Step 2: Convert to fraction form
    109,121.32/163,681.32 = 28,068.22/x
  3. Step 3: Cross multiply
    109,121.32x = 163,681.32 × 28,068.22
  4. Step 4: Simplify right side
    109,121.32x = 4,594,243,299.65
  5. Step 5: Solve for x
    x = 4,594,243,299.65/109,121.32
  6. Step 6: Final answer
    x = 42,102.16

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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.