Home / 154,666.32-213,435.96-90,131.46

Finding the Fourth Proportional to 154,666.32, 213,435.96 and 90,131.46

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Solution

The fourth proportional to 154,666.32, 213,435.96 and 90,131.46 is: 124,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666.32 : 213,435.96 = 90,131.46 : x
  2. Step 2: Convert to fraction form
    154,666.32/213,435.96 = 90,131.46/x
  3. Step 3: Cross multiply
    154,666.32x = 213,435.96 × 90,131.46
  4. Step 4: Simplify right side
    154,666.32x = 19,237,294,691.30
  5. Step 5: Solve for x
    x = 19,237,294,691.30/154,666.32
  6. Step 6: Final answer
    x = 124,379.34

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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.