Home / 140,486.30-210,396.54-80,547.38

Finding the Fourth Proportional to 140,486.30, 210,396.54 and 80,547.38

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Solution

The fourth proportional to 140,486.30, 210,396.54 and 80,547.38 is: 120,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,486.30 : 210,396.54 = 80,547.38 : x
  2. Step 2: Convert to fraction form
    140,486.30/210,396.54 = 80,547.38/x
  3. Step 3: Cross multiply
    140,486.30x = 210,396.54 × 80,547.38
  4. Step 4: Simplify right side
    140,486.30x = 16,946,890,058.07
  5. Step 5: Solve for x
    x = 16,946,890,058.07/140,486.30
  6. Step 6: Final answer
    x = 120,630.20

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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.