Home / 154,064.90-212,668.81-137,903.65

Finding the Fourth Proportional to 154,064.90, 212,668.81 and 137,903.65

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Solution

The fourth proportional to 154,064.90, 212,668.81 and 137,903.65 is: 190,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,064.90 : 212,668.81 = 137,903.65 : x
  2. Step 2: Convert to fraction form
    154,064.90/212,668.81 = 137,903.65/x
  3. Step 3: Cross multiply
    154,064.90x = 212,668.81 × 137,903.65
  4. Step 4: Simplify right side
    154,064.90x = 29,327,804,263.73
  5. Step 5: Solve for x
    x = 29,327,804,263.73/154,064.90
  6. Step 6: Final answer
    x = 190,360.06

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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.