Home / 117,720.40-162,457.42-64,009.09

Finding the Fourth Proportional to 117,720.40, 162,457.42 and 64,009.09

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Solution

The fourth proportional to 117,720.40, 162,457.42 and 64,009.09 is: 88,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.40 : 162,457.42 = 64,009.09 : x
  2. Step 2: Convert to fraction form
    117,720.40/162,457.42 = 64,009.09/x
  3. Step 3: Cross multiply
    117,720.40x = 162,457.42 × 64,009.09
  4. Step 4: Simplify right side
    117,720.40x = 10,398,751,617.95
  5. Step 5: Solve for x
    x = 10,398,751,617.95/117,720.40
  6. Step 6: Final answer
    x = 88,334.32

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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.