Home / 145,345.33-218,018.10-40,164.40

Finding the Fourth Proportional to 145,345.33, 218,018.10 and 40,164.40

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Solution

The fourth proportional to 145,345.33, 218,018.10 and 40,164.40 is: 60,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,345.33 : 218,018.10 = 40,164.40 : x
  2. Step 2: Convert to fraction form
    145,345.33/218,018.10 = 40,164.40/x
  3. Step 3: Cross multiply
    145,345.33x = 218,018.10 × 40,164.40
  4. Step 4: Simplify right side
    145,345.33x = 8,756,566,175.64
  5. Step 5: Solve for x
    x = 8,756,566,175.64/145,345.33
  6. Step 6: Final answer
    x = 60,246.63

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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.