Home / 109,895.60-164,870.40-31,008.80

Finding the Fourth Proportional to 109,895.60, 164,870.40 and 31,008.80

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Solution

The fourth proportional to 109,895.60, 164,870.40 and 31,008.80 is: 46,520.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,895.60 : 164,870.40 = 31,008.80 : x
  2. Step 2: Convert to fraction form
    109,895.60/164,870.40 = 31,008.80/x
  3. Step 3: Cross multiply
    109,895.60x = 164,870.40 × 31,008.80
  4. Step 4: Simplify right side
    109,895.60x = 5,112,433,259.52
  5. Step 5: Solve for x
    x = 5,112,433,259.52/109,895.60
  6. Step 6: Final answer
    x = 46,520.82

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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.