Home / 127,019.75-175,295.12-70,431.12

Finding the Fourth Proportional to 127,019.75, 175,295.12 and 70,431.12

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Solution

The fourth proportional to 127,019.75, 175,295.12 and 70,431.12 is: 97,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,019.75 : 175,295.12 = 70,431.12 : x
  2. Step 2: Convert to fraction form
    127,019.75/175,295.12 = 70,431.12/x
  3. Step 3: Cross multiply
    127,019.75x = 175,295.12 × 70,431.12
  4. Step 4: Simplify right side
    127,019.75x = 12,346,231,279.98
  5. Step 5: Solve for x
    x = 12,346,231,279.98/127,019.75
  6. Step 6: Final answer
    x = 97,199.31

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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.