Home / 127,075.56-175,396.20-86,308.74

Finding the Fourth Proportional to 127,075.56, 175,396.20 and 86,308.74

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Solution

The fourth proportional to 127,075.56, 175,396.20 and 86,308.74 is: 119,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,075.56 : 175,396.20 = 86,308.74 : x
  2. Step 2: Convert to fraction form
    127,075.56/175,396.20 = 86,308.74/x
  3. Step 3: Cross multiply
    127,075.56x = 175,396.20 × 86,308.74
  4. Step 4: Simplify right side
    127,075.56x = 15,138,225,022.79
  5. Step 5: Solve for x
    x = 15,138,225,022.79/127,075.56
  6. Step 6: Final answer
    x = 119,127.75

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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.