Home / 127,303.85-175,535.16-81,303.03

Finding the Fourth Proportional to 127,303.85, 175,535.16 and 81,303.03

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Solution

The fourth proportional to 127,303.85, 175,535.16 and 81,303.03 is: 112,106.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,303.85 : 175,535.16 = 81,303.03 : x
  2. Step 2: Convert to fraction form
    127,303.85/175,535.16 = 81,303.03/x
  3. Step 3: Cross multiply
    127,303.85x = 175,535.16 × 81,303.03
  4. Step 4: Simplify right side
    127,303.85x = 14,271,540,379.53
  5. Step 5: Solve for x
    x = 14,271,540,379.53/127,303.85
  6. Step 6: Final answer
    x = 112,106.12

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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.