Home / 109,974.80-164,962.20-70,576.40

Finding the Fourth Proportional to 109,974.80, 164,962.20 and 70,576.40

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Solution

The fourth proportional to 109,974.80, 164,962.20 and 70,576.40 is: 105,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,974.80 : 164,962.20 = 70,576.40 : x
  2. Step 2: Convert to fraction form
    109,974.80/164,962.20 = 70,576.40/x
  3. Step 3: Cross multiply
    109,974.80x = 164,962.20 × 70,576.40
  4. Step 4: Simplify right side
    109,974.80x = 11,642,438,212.08
  5. Step 5: Solve for x
    x = 11,642,438,212.08/109,974.80
  6. Step 6: Final answer
    x = 105,864.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.