Home / 136,446.80-188,283.72-76,011.28

Finding the Fourth Proportional to 136,446.80, 188,283.72 and 76,011.28

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Solution

The fourth proportional to 136,446.80, 188,283.72 and 76,011.28 is: 104,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.80 : 188,283.72 = 76,011.28 : x
  2. Step 2: Convert to fraction form
    136,446.80/188,283.72 = 76,011.28/x
  3. Step 3: Cross multiply
    136,446.80x = 188,283.72 × 76,011.28
  4. Step 4: Simplify right side
    136,446.80x = 14,311,686,560.36
  5. Step 5: Solve for x
    x = 14,311,686,560.36/136,446.80
  6. Step 6: Final answer
    x = 104,888.40

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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.