Home / 127,205.85-175,558.06-72,763.05

Finding the Fourth Proportional to 127,205.85, 175,558.06 and 72,763.05

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Solution

The fourth proportional to 127,205.85, 175,558.06 and 72,763.05 is: 100,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,205.85 : 175,558.06 = 72,763.05 : x
  2. Step 2: Convert to fraction form
    127,205.85/175,558.06 = 72,763.05/x
  3. Step 3: Cross multiply
    127,205.85x = 175,558.06 × 72,763.05
  4. Step 4: Simplify right side
    127,205.85x = 12,774,139,897.68
  5. Step 5: Solve for x
    x = 12,774,139,897.68/127,205.85
  6. Step 6: Final answer
    x = 100,421.01

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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.