Home / 148,920.90-205,511.30-85,259.18

Finding the Fourth Proportional to 148,920.90, 205,511.30 and 85,259.18

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Solution

The fourth proportional to 148,920.90, 205,511.30 and 85,259.18 is: 117,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,920.90 : 205,511.30 = 85,259.18 : x
  2. Step 2: Convert to fraction form
    148,920.90/205,511.30 = 85,259.18/x
  3. Step 3: Cross multiply
    148,920.90x = 205,511.30 × 85,259.18
  4. Step 4: Simplify right side
    148,920.90x = 17,521,724,918.73
  5. Step 5: Solve for x
    x = 17,521,724,918.73/148,920.90
  6. Step 6: Final answer
    x = 117,657.93

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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.