Home / 105,328.63-145,334.82-62,309.93

Finding the Fourth Proportional to 105,328.63, 145,334.82 and 62,309.93

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Solution

The fourth proportional to 105,328.63, 145,334.82 and 62,309.93 is: 85,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,328.63 : 145,334.82 = 62,309.93 : x
  2. Step 2: Convert to fraction form
    105,328.63/145,334.82 = 62,309.93/x
  3. Step 3: Cross multiply
    105,328.63x = 145,334.82 × 62,309.93
  4. Step 4: Simplify right side
    105,328.63x = 9,055,802,162.26
  5. Step 5: Solve for x
    x = 9,055,802,162.26/105,328.63
  6. Step 6: Final answer
    x = 85,976.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.