Home / 120,588.48-180,780.65-45,667.32

Finding the Fourth Proportional to 120,588.48, 180,780.65 and 45,667.32

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Solution

The fourth proportional to 120,588.48, 180,780.65 and 45,667.32 is: 68,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,588.48 : 180,780.65 = 45,667.32 : x
  2. Step 2: Convert to fraction form
    120,588.48/180,780.65 = 45,667.32/x
  3. Step 3: Cross multiply
    120,588.48x = 180,780.65 × 45,667.32
  4. Step 4: Simplify right side
    120,588.48x = 8,255,767,793.36
  5. Step 5: Solve for x
    x = 8,255,767,793.36/120,588.48
  6. Step 6: Final answer
    x = 68,462.33

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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.