Home / 115,239.63-172,857.73-70,274.20

Finding the Fourth Proportional to 115,239.63, 172,857.73 and 70,274.20

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Solution

The fourth proportional to 115,239.63, 172,857.73 and 70,274.20 is: 105,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,239.63 : 172,857.73 = 70,274.20 : x
  2. Step 2: Convert to fraction form
    115,239.63/172,857.73 = 70,274.20/x
  3. Step 3: Cross multiply
    115,239.63x = 172,857.73 × 70,274.20
  4. Step 4: Simplify right side
    115,239.63x = 12,147,438,689.57
  5. Step 5: Solve for x
    x = 12,147,438,689.57/115,239.63
  6. Step 6: Final answer
    x = 105,410.25

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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.