Home / 105,743.88-145,871.28-62,698.32

Finding the Fourth Proportional to 105,743.88, 145,871.28 and 62,698.32

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Solution

The fourth proportional to 105,743.88, 145,871.28 and 62,698.32 is: 86,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.88 : 145,871.28 = 62,698.32 : x
  2. Step 2: Convert to fraction form
    105,743.88/145,871.28 = 62,698.32/x
  3. Step 3: Cross multiply
    105,743.88x = 145,871.28 × 62,698.32
  4. Step 4: Simplify right side
    105,743.88x = 9,145,884,192.25
  5. Step 5: Solve for x
    x = 9,145,884,192.25/105,743.88
  6. Step 6: Final answer
    x = 86,490.91

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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.