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Finding the Fourth Proportional to 112,482.09, 155,232.09 and 64,734.39

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Solution

The fourth proportional to 112,482.09, 155,232.09 and 64,734.39 is: 89,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,482.09 : 155,232.09 = 64,734.39 : x
  2. Step 2: Convert to fraction form
    112,482.09/155,232.09 = 64,734.39/x
  3. Step 3: Cross multiply
    112,482.09x = 155,232.09 × 64,734.39
  4. Step 4: Simplify right side
    112,482.09x = 10,048,854,654.58
  5. Step 5: Solve for x
    x = 10,048,854,654.58/112,482.09
  6. Step 6: Final answer
    x = 89,337.37

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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.