Home / 109,931.70-164,897.55-39,861.30

Finding the Fourth Proportional to 109,931.70, 164,897.55 and 39,861.30

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Solution

The fourth proportional to 109,931.70, 164,897.55 and 39,861.30 is: 59,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931.70 : 164,897.55 = 39,861.30 : x
  2. Step 2: Convert to fraction form
    109,931.70/164,897.55 = 39,861.30/x
  3. Step 3: Cross multiply
    109,931.70x = 164,897.55 × 39,861.30
  4. Step 4: Simplify right side
    109,931.70x = 6,573,030,709.82
  5. Step 5: Solve for x
    x = 6,573,030,709.82/109,931.70
  6. Step 6: Final answer
    x = 59,791.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.