Home / 147,316.76-221,071.98-80,803.50

Finding the Fourth Proportional to 147,316.76, 221,071.98 and 80,803.50

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Solution

The fourth proportional to 147,316.76, 221,071.98 and 80,803.50 is: 121,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.76 : 221,071.98 = 80,803.50 : x
  2. Step 2: Convert to fraction form
    147,316.76/221,071.98 = 80,803.50/x
  3. Step 3: Cross multiply
    147,316.76x = 221,071.98 × 80,803.50
  4. Step 4: Simplify right side
    147,316.76x = 17,863,389,735.93
  5. Step 5: Solve for x
    x = 17,863,389,735.93/147,316.76
  6. Step 6: Final answer
    x = 121,258.37

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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.