Home / 147,607.04-203,699.20-80,540.16

Finding the Fourth Proportional to 147,607.04, 203,699.20 and 80,540.16

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Solution

The fourth proportional to 147,607.04, 203,699.20 and 80,540.16 is: 111,146.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,607.04 : 203,699.20 = 80,540.16 : x
  2. Step 2: Convert to fraction form
    147,607.04/203,699.20 = 80,540.16/x
  3. Step 3: Cross multiply
    147,607.04x = 203,699.20 × 80,540.16
  4. Step 4: Simplify right side
    147,607.04x = 16,405,966,159.87
  5. Step 5: Solve for x
    x = 16,405,966,159.87/147,607.04
  6. Step 6: Final answer
    x = 111,146.23

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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.