Home / 127,349.47-175,735.11-76,336.67

Finding the Fourth Proportional to 127,349.47, 175,735.11 and 76,336.67

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Solution

The fourth proportional to 127,349.47, 175,735.11 and 76,336.67 is: 105,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,349.47 : 175,735.11 = 76,336.67 : x
  2. Step 2: Convert to fraction form
    127,349.47/175,735.11 = 76,336.67/x
  3. Step 3: Cross multiply
    127,349.47x = 175,735.11 × 76,336.67
  4. Step 4: Simplify right side
    127,349.47x = 13,415,032,220.81
  5. Step 5: Solve for x
    x = 13,415,032,220.81/127,349.47
  6. Step 6: Final answer
    x = 105,340.31

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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.