Home / 127,140.39-175,454.78-70,552.71

Finding the Fourth Proportional to 127,140.39, 175,454.78 and 70,552.71

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Solution

The fourth proportional to 127,140.39, 175,454.78 and 70,552.71 is: 97,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.39 : 175,454.78 = 70,552.71 : x
  2. Step 2: Convert to fraction form
    127,140.39/175,454.78 = 70,552.71/x
  3. Step 3: Cross multiply
    127,140.39x = 175,454.78 × 70,552.71
  4. Step 4: Simplify right side
    127,140.39x = 12,378,809,858.69
  5. Step 5: Solve for x
    x = 12,378,809,858.69/127,140.39
  6. Step 6: Final answer
    x = 97,363.32

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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.