Home / 145,879.36-218,842.40-61,640.35

Finding the Fourth Proportional to 145,879.36, 218,842.40 and 61,640.35

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Solution

The fourth proportional to 145,879.36, 218,842.40 and 61,640.35 is: 92,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,879.36 : 218,842.40 = 61,640.35 : x
  2. Step 2: Convert to fraction form
    145,879.36/218,842.40 = 61,640.35/x
  3. Step 3: Cross multiply
    145,879.36x = 218,842.40 × 61,640.35
  4. Step 4: Simplify right side
    145,879.36x = 13,489,522,130.84
  5. Step 5: Solve for x
    x = 13,489,522,130.84/145,879.36
  6. Step 6: Final answer
    x = 92,470.40

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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.