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Finding the Fourth Proportional to 101,344.80, 152,017.20 and 51,405.60

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Solution

The fourth proportional to 101,344.80, 152,017.20 and 51,405.60 is: 77,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,344.80 : 152,017.20 = 51,405.60 : x
  2. Step 2: Convert to fraction form
    101,344.80/152,017.20 = 51,405.60/x
  3. Step 3: Cross multiply
    101,344.80x = 152,017.20 × 51,405.60
  4. Step 4: Simplify right side
    101,344.80x = 7,814,535,376.32
  5. Step 5: Solve for x
    x = 7,814,535,376.32/101,344.80
  6. Step 6: Final answer
    x = 77,108.40

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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.