Home / 127,485.40-175,926.78-69,340.64

Finding the Fourth Proportional to 127,485.40, 175,926.78 and 69,340.64

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Solution

The fourth proportional to 127,485.40, 175,926.78 and 69,340.64 is: 95,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,485.40 : 175,926.78 = 69,340.64 : x
  2. Step 2: Convert to fraction form
    127,485.40/175,926.78 = 69,340.64/x
  3. Step 3: Cross multiply
    127,485.40x = 175,926.78 × 69,340.64
  4. Step 4: Simplify right side
    127,485.40x = 12,198,875,518.34
  5. Step 5: Solve for x
    x = 12,198,875,518.34/127,485.40
  6. Step 6: Final answer
    x = 95,688.41

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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.