Home / 136,444.80-188,280.96-76,009.28

Finding the Fourth Proportional to 136,444.80, 188,280.96 and 76,009.28

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Solution

The fourth proportional to 136,444.80, 188,280.96 and 76,009.28 is: 104,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,444.80 : 188,280.96 = 76,009.28 : x
  2. Step 2: Convert to fraction form
    136,444.80/188,280.96 = 76,009.28/x
  3. Step 3: Cross multiply
    136,444.80x = 188,280.96 × 76,009.28
  4. Step 4: Simplify right side
    136,444.80x = 14,311,100,207.31
  5. Step 5: Solve for x
    x = 14,311,100,207.31/136,444.80
  6. Step 6: Final answer
    x = 104,885.64

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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.