Home / 158,316.76-218,477.24-86,696.80

Finding the Fourth Proportional to 158,316.76, 218,477.24 and 86,696.80

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Solution

The fourth proportional to 158,316.76, 218,477.24 and 86,696.80 is: 119,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,316.76 : 218,477.24 = 86,696.80 : x
  2. Step 2: Convert to fraction form
    158,316.76/218,477.24 = 86,696.80/x
  3. Step 3: Cross multiply
    158,316.76x = 218,477.24 × 86,696.80
  4. Step 4: Simplify right side
    158,316.76x = 18,941,277,580.83
  5. Step 5: Solve for x
    x = 18,941,277,580.83/158,316.76
  6. Step 6: Final answer
    x = 119,641.64

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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.