Home / 115,016.15-172,395.95-86,844.76

Finding the Fourth Proportional to 115,016.15, 172,395.95 and 86,844.76

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Solution

The fourth proportional to 115,016.15, 172,395.95 and 86,844.76 is: 130,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,016.15 : 172,395.95 = 86,844.76 : x
  2. Step 2: Convert to fraction form
    115,016.15/172,395.95 = 86,844.76/x
  3. Step 3: Cross multiply
    115,016.15x = 172,395.95 × 86,844.76
  4. Step 4: Simplify right side
    115,016.15x = 14,971,684,037.51
  5. Step 5: Solve for x
    x = 14,971,684,037.51/115,016.15
  6. Step 6: Final answer
    x = 130,170.27

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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.