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Finding the Fourth Proportional to 130,396.32, 179,938.08 and 73,804.32

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Solution

The fourth proportional to 130,396.32, 179,938.08 and 73,804.32 is: 101,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,396.32 : 179,938.08 = 73,804.32 : x
  2. Step 2: Convert to fraction form
    130,396.32/179,938.08 = 73,804.32/x
  3. Step 3: Cross multiply
    130,396.32x = 179,938.08 × 73,804.32
  4. Step 4: Simplify right side
    130,396.32x = 13,280,207,636.51
  5. Step 5: Solve for x
    x = 13,280,207,636.51/130,396.32
  6. Step 6: Final answer
    x = 101,844.96

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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.