Home / 109,347.20-164,085.60-72,014.30

Finding the Fourth Proportional to 109,347.20, 164,085.60 and 72,014.30

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Solution

The fourth proportional to 109,347.20, 164,085.60 and 72,014.30 is: 108,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,347.20 : 164,085.60 = 72,014.30 : x
  2. Step 2: Convert to fraction form
    109,347.20/164,085.60 = 72,014.30/x
  3. Step 3: Cross multiply
    109,347.20x = 164,085.60 × 72,014.30
  4. Step 4: Simplify right side
    109,347.20x = 11,816,509,624.08
  5. Step 5: Solve for x
    x = 11,816,509,624.08/109,347.20
  6. Step 6: Final answer
    x = 108,064.13

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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.