Home / 156,588.51-234,860.90-66,667.28

Finding the Fourth Proportional to 156,588.51, 234,860.90 and 66,667.28

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Solution

The fourth proportional to 156,588.51, 234,860.90 and 66,667.28 is: 99,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,588.51 : 234,860.90 = 66,667.28 : x
  2. Step 2: Convert to fraction form
    156,588.51/234,860.90 = 66,667.28/x
  3. Step 3: Cross multiply
    156,588.51x = 234,860.90 × 66,667.28
  4. Step 4: Simplify right side
    156,588.51x = 15,657,535,873.71
  5. Step 5: Solve for x
    x = 15,657,535,873.71/156,588.51
  6. Step 6: Final answer
    x = 99,991.60

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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.