Home / 118,328.09-163,299.41-64,618.10

Finding the Fourth Proportional to 118,328.09, 163,299.41 and 64,618.10

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Solution

The fourth proportional to 118,328.09, 163,299.41 and 64,618.10 is: 89,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,328.09 : 163,299.41 = 64,618.10 : x
  2. Step 2: Convert to fraction form
    118,328.09/163,299.41 = 64,618.10/x
  3. Step 3: Cross multiply
    118,328.09x = 163,299.41 × 64,618.10
  4. Step 4: Simplify right side
    118,328.09x = 10,552,097,282.23
  5. Step 5: Solve for x
    x = 10,552,097,282.23/118,328.09
  6. Step 6: Final answer
    x = 89,176.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.