Home / 147,638.16-203,740.92-80,570.16

Finding the Fourth Proportional to 147,638.16, 203,740.92 and 80,570.16

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Solution

The fourth proportional to 147,638.16, 203,740.92 and 80,570.16 is: 111,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,638.16 : 203,740.92 = 80,570.16 : x
  2. Step 2: Convert to fraction form
    147,638.16/203,740.92 = 80,570.16/x
  3. Step 3: Cross multiply
    147,638.16x = 203,740.92 × 80,570.16
  4. Step 4: Simplify right side
    147,638.16x = 16,415,438,522.95
  5. Step 5: Solve for x
    x = 16,415,438,522.95/147,638.16
  6. Step 6: Final answer
    x = 111,186.96

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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.