Home / 112,010.40-168,015.60-64,771.20

Finding the Fourth Proportional to 112,010.40, 168,015.60 and 64,771.20

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Solution

The fourth proportional to 112,010.40, 168,015.60 and 64,771.20 is: 97,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,010.40 : 168,015.60 = 64,771.20 : x
  2. Step 2: Convert to fraction form
    112,010.40/168,015.60 = 64,771.20/x
  3. Step 3: Cross multiply
    112,010.40x = 168,015.60 × 64,771.20
  4. Step 4: Simplify right side
    112,010.40x = 10,882,572,030.72
  5. Step 5: Solve for x
    x = 10,882,572,030.72/112,010.40
  6. Step 6: Final answer
    x = 97,156.80

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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.