Home / 170,780.46-235,676.13-99,178.08

Finding the Fourth Proportional to 170,780.46, 235,676.13 and 99,178.08

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Solution

The fourth proportional to 170,780.46, 235,676.13 and 99,178.08 is: 136,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,780.46 : 235,676.13 = 99,178.08 : x
  2. Step 2: Convert to fraction form
    170,780.46/235,676.13 = 99,178.08/x
  3. Step 3: Cross multiply
    170,780.46x = 235,676.13 × 99,178.08
  4. Step 4: Simplify right side
    170,780.46x = 23,373,906,075.23
  5. Step 5: Solve for x
    x = 23,373,906,075.23/170,780.46
  6. Step 6: Final answer
    x = 136,865.22

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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.