Home / 136,802.25-188,783.43-76,371.19

Finding the Fourth Proportional to 136,802.25, 188,783.43 and 76,371.19

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Solution

The fourth proportional to 136,802.25, 188,783.43 and 76,371.19 is: 105,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,802.25 : 188,783.43 = 76,371.19 : x
  2. Step 2: Convert to fraction form
    136,802.25/188,783.43 = 76,371.19/x
  3. Step 3: Cross multiply
    136,802.25x = 188,783.43 × 76,371.19
  4. Step 4: Simplify right side
    136,802.25x = 14,417,614,443.03
  5. Step 5: Solve for x
    x = 14,417,614,443.03/136,802.25
  6. Step 6: Final answer
    x = 105,390.19

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1.5x scale

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.