Home / 136,726.40-205,090.08-66,545.60

Finding the Fourth Proportional to 136,726.40, 205,090.08 and 66,545.60

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Solution

The fourth proportional to 136,726.40, 205,090.08 and 66,545.60 is: 99,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,726.40 : 205,090.08 = 66,545.60 : x
  2. Step 2: Convert to fraction form
    136,726.40/205,090.08 = 66,545.60/x
  3. Step 3: Cross multiply
    136,726.40x = 205,090.08 × 66,545.60
  4. Step 4: Simplify right side
    136,726.40x = 13,647,842,427.65
  5. Step 5: Solve for x
    x = 13,647,842,427.65/136,726.40
  6. Step 6: Final answer
    x = 99,818.63

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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.