Home / 158,370.07-218,550.75-86,752.68

Finding the Fourth Proportional to 158,370.07, 218,550.75 and 86,752.68

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Solution

The fourth proportional to 158,370.07, 218,550.75 and 86,752.68 is: 119,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,370.07 : 218,550.75 = 86,752.68 : x
  2. Step 2: Convert to fraction form
    158,370.07/218,550.75 = 86,752.68/x
  3. Step 3: Cross multiply
    158,370.07x = 218,550.75 × 86,752.68
  4. Step 4: Simplify right side
    158,370.07x = 18,959,863,278.51
  5. Step 5: Solve for x
    x = 18,959,863,278.51/158,370.07
  6. Step 6: Final answer
    x = 119,718.73

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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.