Home / 190,863.10-286,327.05-57,742.30

Finding the Fourth Proportional to 190,863.10, 286,327.05 and 57,742.30

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Solution

The fourth proportional to 190,863.10, 286,327.05 and 57,742.30 is: 86,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,863.10 : 286,327.05 = 57,742.30 : x
  2. Step 2: Convert to fraction form
    190,863.10/286,327.05 = 57,742.30/x
  3. Step 3: Cross multiply
    190,863.10x = 286,327.05 × 57,742.30
  4. Step 4: Simplify right side
    190,863.10x = 16,533,182,419.22
  5. Step 5: Solve for x
    x = 16,533,182,419.22/190,863.10
  6. Step 6: Final answer
    x = 86,623.25

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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.