Home / 154,201.50-212,709.33-90,526.98

Finding the Fourth Proportional to 154,201.50, 212,709.33 and 90,526.98

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Solution

The fourth proportional to 154,201.50, 212,709.33 and 90,526.98 is: 124,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,201.50 : 212,709.33 = 90,526.98 : x
  2. Step 2: Convert to fraction form
    154,201.50/212,709.33 = 90,526.98/x
  3. Step 3: Cross multiply
    154,201.50x = 212,709.33 × 90,526.98
  4. Step 4: Simplify right side
    154,201.50x = 19,255,933,262.72
  5. Step 5: Solve for x
    x = 19,255,933,262.72/154,201.50
  6. Step 6: Final answer
    x = 124,875.14

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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.