Home / 112,054.80-168,082.20-99,807.60

Finding the Fourth Proportional to 112,054.80, 168,082.20 and 99,807.60

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Solution

The fourth proportional to 112,054.80, 168,082.20 and 99,807.60 is: 149,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,054.80 : 168,082.20 = 99,807.60 : x
  2. Step 2: Convert to fraction form
    112,054.80/168,082.20 = 99,807.60/x
  3. Step 3: Cross multiply
    112,054.80x = 168,082.20 × 99,807.60
  4. Step 4: Simplify right side
    112,054.80x = 16,775,880,984.72
  5. Step 5: Solve for x
    x = 16,775,880,984.72/112,054.80
  6. Step 6: Final answer
    x = 149,711.40

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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.