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Finding the Fourth Proportional to 109,640.39, 151,303.74 and 59,339.39

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Solution

The fourth proportional to 109,640.39, 151,303.74 and 59,339.39 is: 81,888.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.39 : 151,303.74 = 59,339.39 : x
  2. Step 2: Convert to fraction form
    109,640.39/151,303.74 = 59,339.39/x
  3. Step 3: Cross multiply
    109,640.39x = 151,303.74 × 59,339.39
  4. Step 4: Simplify right side
    109,640.39x = 8,978,271,636.32
  5. Step 5: Solve for x
    x = 8,978,271,636.32/109,640.39
  6. Step 6: Final answer
    x = 81,888.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.