Home / 109,022.32-163,533.08-30,136.40

Finding the Fourth Proportional to 109,022.32, 163,533.08 and 30,136.40

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Solution

The fourth proportional to 109,022.32, 163,533.08 and 30,136.40 is: 45,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,022.32 : 163,533.08 = 30,136.40 : x
  2. Step 2: Convert to fraction form
    109,022.32/163,533.08 = 30,136.40/x
  3. Step 3: Cross multiply
    109,022.32x = 163,533.08 × 30,136.40
  4. Step 4: Simplify right side
    109,022.32x = 4,928,298,312.11
  5. Step 5: Solve for x
    x = 4,928,298,312.11/109,022.32
  6. Step 6: Final answer
    x = 45,204.49

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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.