Home / 145,371.18-218,056.77-45,532.20

Finding the Fourth Proportional to 145,371.18, 218,056.77 and 45,532.20

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Solution

The fourth proportional to 145,371.18, 218,056.77 and 45,532.20 is: 68,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,371.18 : 218,056.77 = 45,532.20 : x
  2. Step 2: Convert to fraction form
    145,371.18/218,056.77 = 45,532.20/x
  3. Step 3: Cross multiply
    145,371.18x = 218,056.77 × 45,532.20
  4. Step 4: Simplify right side
    145,371.18x = 9,928,604,462.99
  5. Step 5: Solve for x
    x = 9,928,604,462.99/145,371.18
  6. Step 6: Final answer
    x = 68,298.30

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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.