Home / 130,664.40-180,357.48-103,854.48

Finding the Fourth Proportional to 130,664.40, 180,357.48 and 103,854.48

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Solution

The fourth proportional to 130,664.40, 180,357.48 and 103,854.48 is: 143,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,664.40 : 180,357.48 = 103,854.48 : x
  2. Step 2: Convert to fraction form
    130,664.40/180,357.48 = 103,854.48/x
  3. Step 3: Cross multiply
    130,664.40x = 180,357.48 × 103,854.48
  4. Step 4: Simplify right side
    130,664.40x = 18,730,932,299.51
  5. Step 5: Solve for x
    x = 18,730,932,299.51/130,664.40
  6. Step 6: Final answer
    x = 143,351.46

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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.