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Finding the Fourth Proportional to 101,070.40, 151,605.60 and 71,521.60

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Solution

The fourth proportional to 101,070.40, 151,605.60 and 71,521.60 is: 107,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,070.40 : 151,605.60 = 71,521.60 : x
  2. Step 2: Convert to fraction form
    101,070.40/151,605.60 = 71,521.60/x
  3. Step 3: Cross multiply
    101,070.40x = 151,605.60 × 71,521.60
  4. Step 4: Simplify right side
    101,070.40x = 10,843,075,080.96
  5. Step 5: Solve for x
    x = 10,843,075,080.96/101,070.40
  6. Step 6: Final answer
    x = 107,282.40

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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.