Home / 154,360.18-213,050.15-100,549.18

Finding the Fourth Proportional to 154,360.18, 213,050.15 and 100,549.18

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Solution

The fourth proportional to 154,360.18, 213,050.15 and 100,549.18 is: 138,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,360.18 : 213,050.15 = 100,549.18 : x
  2. Step 2: Convert to fraction form
    154,360.18/213,050.15 = 100,549.18/x
  3. Step 3: Cross multiply
    154,360.18x = 213,050.15 × 100,549.18
  4. Step 4: Simplify right side
    154,360.18x = 21,422,017,881.38
  5. Step 5: Solve for x
    x = 21,422,017,881.38/154,360.18
  6. Step 6: Final answer
    x = 138,779.43

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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.