Home / 147,316.89-221,072.22-80,803.74

Finding the Fourth Proportional to 147,316.89, 221,072.22 and 80,803.74

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Solution

The fourth proportional to 147,316.89, 221,072.22 and 80,803.74 is: 121,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.89 : 221,072.22 = 80,803.74 : x
  2. Step 2: Convert to fraction form
    147,316.89/221,072.22 = 80,803.74/x
  3. Step 3: Cross multiply
    147,316.89x = 221,072.22 × 80,803.74
  4. Step 4: Simplify right side
    147,316.89x = 17,863,462,186.10
  5. Step 5: Solve for x
    x = 17,863,462,186.10/147,316.89
  6. Step 6: Final answer
    x = 121,258.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.