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Finding the Fourth Proportional to 101,085.60, 151,628.40 and 99,117.30

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Solution

The fourth proportional to 101,085.60, 151,628.40 and 99,117.30 is: 148,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,085.60 : 151,628.40 = 99,117.30 : x
  2. Step 2: Convert to fraction form
    101,085.60/151,628.40 = 99,117.30/x
  3. Step 3: Cross multiply
    101,085.60x = 151,628.40 × 99,117.30
  4. Step 4: Simplify right side
    101,085.60x = 15,028,997,611.32
  5. Step 5: Solve for x
    x = 15,028,997,611.32/101,085.60
  6. Step 6: Final answer
    x = 148,675.95

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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.