Home / 145,938.12-218,919.60-46,071.60

Finding the Fourth Proportional to 145,938.12, 218,919.60 and 46,071.60

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Solution

The fourth proportional to 145,938.12, 218,919.60 and 46,071.60 is: 69,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,938.12 : 218,919.60 = 46,071.60 : x
  2. Step 2: Convert to fraction form
    145,938.12/218,919.60 = 46,071.60/x
  3. Step 3: Cross multiply
    145,938.12x = 218,919.60 × 46,071.60
  4. Step 4: Simplify right side
    145,938.12x = 10,085,976,243.36
  5. Step 5: Solve for x
    x = 10,085,976,243.36/145,938.12
  6. Step 6: Final answer
    x = 69,111.32

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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.