Home / 127,775.48-176,343.28-76,804.71

Finding the Fourth Proportional to 127,775.48, 176,343.28 and 76,804.71

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Solution

The fourth proportional to 127,775.48, 176,343.28 and 76,804.71 is: 105,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,775.48 : 176,343.28 = 76,804.71 : x
  2. Step 2: Convert to fraction form
    127,775.48/176,343.28 = 76,804.71/x
  3. Step 3: Cross multiply
    127,775.48x = 176,343.28 × 76,804.71
  4. Step 4: Simplify right side
    127,775.48x = 13,543,993,627.55
  5. Step 5: Solve for x
    x = 13,543,993,627.55/127,775.48
  6. Step 6: Final answer
    x = 105,998.38

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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.