Home / 145,909.82-218,885.20-51,118.29

Finding the Fourth Proportional to 145,909.82, 218,885.20 and 51,118.29

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Solution

The fourth proportional to 145,909.82, 218,885.20 and 51,118.29 is: 76,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,909.82 : 218,885.20 = 51,118.29 : x
  2. Step 2: Convert to fraction form
    145,909.82/218,885.20 = 51,118.29/x
  3. Step 3: Cross multiply
    145,909.82x = 218,885.20 × 51,118.29
  4. Step 4: Simplify right side
    145,909.82x = 11,189,037,002.51
  5. Step 5: Solve for x
    x = 11,189,037,002.51/145,909.82
  6. Step 6: Final answer
    x = 76,684.60

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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.