Home / 188,428.03-260,032.73-103,545.08

Finding the Fourth Proportional to 188,428.03, 260,032.73 and 103,545.08

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Solution

The fourth proportional to 188,428.03, 260,032.73 and 103,545.08 is: 142,893.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,428.03 : 260,032.73 = 103,545.08 : x
  2. Step 2: Convert to fraction form
    188,428.03/260,032.73 = 103,545.08/x
  3. Step 3: Cross multiply
    188,428.03x = 260,032.73 × 103,545.08
  4. Step 4: Simplify right side
    188,428.03x = 26,925,109,830.47
  5. Step 5: Solve for x
    x = 26,925,109,830.47/188,428.03
  6. Step 6: Final answer
    x = 142,893.34

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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.