Home / 180,696.29-249,360.64-100,129.03

Finding the Fourth Proportional to 180,696.29, 249,360.64 and 100,129.03

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Solution

The fourth proportional to 180,696.29, 249,360.64 and 100,129.03 is: 138,177.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,696.29 : 249,360.64 = 100,129.03 : x
  2. Step 2: Convert to fraction form
    180,696.29/249,360.64 = 100,129.03/x
  3. Step 3: Cross multiply
    180,696.29x = 249,360.64 × 100,129.03
  4. Step 4: Simplify right side
    180,696.29x = 24,968,238,502.73
  5. Step 5: Solve for x
    x = 24,968,238,502.73/180,696.29
  6. Step 6: Final answer
    x = 138,177.93

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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.