Home / 158,201.47-218,316.24-86,580.63

Finding the Fourth Proportional to 158,201.47, 218,316.24 and 86,580.63

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Solution

The fourth proportional to 158,201.47, 218,316.24 and 86,580.63 is: 119,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,201.47 : 218,316.24 = 86,580.63 : x
  2. Step 2: Convert to fraction form
    158,201.47/218,316.24 = 86,580.63/x
  3. Step 3: Cross multiply
    158,201.47x = 218,316.24 × 86,580.63
  4. Step 4: Simplify right side
    158,201.47x = 18,901,957,598.43
  5. Step 5: Solve for x
    x = 18,901,957,598.43/158,201.47
  6. Step 6: Final answer
    x = 119,480.29

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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.