Home / 127,272.25-175,635.71-70,688.89

Finding the Fourth Proportional to 127,272.25, 175,635.71 and 70,688.89

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Solution

The fourth proportional to 127,272.25, 175,635.71 and 70,688.89 is: 97,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,272.25 : 175,635.71 = 70,688.89 : x
  2. Step 2: Convert to fraction form
    127,272.25/175,635.71 = 70,688.89/x
  3. Step 3: Cross multiply
    127,272.25x = 175,635.71 × 70,688.89
  4. Step 4: Simplify right side
    127,272.25x = 12,415,493,384.26
  5. Step 5: Solve for x
    x = 12,415,493,384.26/127,272.25
  6. Step 6: Final answer
    x = 97,550.67

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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.