Home / 130,974.96-180,767.28-77,273.28

Finding the Fourth Proportional to 130,974.96, 180,767.28 and 77,273.28

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Solution

The fourth proportional to 130,974.96, 180,767.28 and 77,273.28 is: 106,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,974.96 : 180,767.28 = 77,273.28 : x
  2. Step 2: Convert to fraction form
    130,974.96/180,767.28 = 77,273.28/x
  3. Step 3: Cross multiply
    130,974.96x = 180,767.28 × 77,273.28
  4. Step 4: Simplify right side
    130,974.96x = 13,968,480,642.28
  5. Step 5: Solve for x
    x = 13,968,480,642.28/130,974.96
  6. Step 6: Final answer
    x = 106,650.01

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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.