Home / 165,457.12-228,408.24-105,875.68

Finding the Fourth Proportional to 165,457.12, 228,408.24 and 105,875.68

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Solution

The fourth proportional to 165,457.12, 228,408.24 and 105,875.68 is: 146,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,457.12 : 228,408.24 = 105,875.68 : x
  2. Step 2: Convert to fraction form
    165,457.12/228,408.24 = 105,875.68/x
  3. Step 3: Cross multiply
    165,457.12x = 228,408.24 × 105,875.68
  4. Step 4: Simplify right side
    165,457.12x = 24,182,877,727.60
  5. Step 5: Solve for x
    x = 24,182,877,727.60/165,457.12
  6. Step 6: Final answer
    x = 146,157.98

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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.