Home / 127,148.95-175,447.64-76,149.73

Finding the Fourth Proportional to 127,148.95, 175,447.64 and 76,149.73

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Solution

The fourth proportional to 127,148.95, 175,447.64 and 76,149.73 is: 105,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,148.95 : 175,447.64 = 76,149.73 : x
  2. Step 2: Convert to fraction form
    127,148.95/175,447.64 = 76,149.73/x
  3. Step 3: Cross multiply
    127,148.95x = 175,447.64 × 76,149.73
  4. Step 4: Simplify right side
    127,148.95x = 13,360,289,157.15
  5. Step 5: Solve for x
    x = 13,360,289,157.15/127,148.95
  6. Step 6: Final answer
    x = 105,075.89

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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.