Home / 127,690.47-176,133.02-91,823.67

Finding the Fourth Proportional to 127,690.47, 176,133.02 and 91,823.67

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Solution

The fourth proportional to 127,690.47, 176,133.02 and 91,823.67 is: 126,659.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,690.47 : 176,133.02 = 91,823.67 : x
  2. Step 2: Convert to fraction form
    127,690.47/176,133.02 = 91,823.67/x
  3. Step 3: Cross multiply
    127,690.47x = 176,133.02 × 91,823.67
  4. Step 4: Simplify right side
    127,690.47x = 16,173,179,845.47
  5. Step 5: Solve for x
    x = 16,173,179,845.47/127,690.47
  6. Step 6: Final answer
    x = 126,659.26

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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.