Home / 148,432.78-204,815.37-90,259.84

Finding the Fourth Proportional to 148,432.78, 204,815.37 and 90,259.84

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Solution

The fourth proportional to 148,432.78, 204,815.37 and 90,259.84 is: 124,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,432.78 : 204,815.37 = 90,259.84 : x
  2. Step 2: Convert to fraction form
    148,432.78/204,815.37 = 90,259.84/x
  3. Step 3: Cross multiply
    148,432.78x = 204,815.37 × 90,259.84
  4. Step 4: Simplify right side
    148,432.78x = 18,486,602,525.74
  5. Step 5: Solve for x
    x = 18,486,602,525.74/148,432.78
  6. Step 6: Final answer
    x = 124,545.28

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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.