Home / 145,746.81-218,620.26-112,515.39

Finding the Fourth Proportional to 145,746.81, 218,620.26 and 112,515.39

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Solution

The fourth proportional to 145,746.81, 218,620.26 and 112,515.39 is: 168,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,746.81 : 218,620.26 = 112,515.39 : x
  2. Step 2: Convert to fraction form
    145,746.81/218,620.26 = 112,515.39/x
  3. Step 3: Cross multiply
    145,746.81x = 218,620.26 × 112,515.39
  4. Step 4: Simplify right side
    145,746.81x = 24,598,143,815.80
  5. Step 5: Solve for x
    x = 24,598,143,815.80/145,746.81
  6. Step 6: Final answer
    x = 168,773.12

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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.