Home / 136,780.12-205,168.02-70,181.80

Finding the Fourth Proportional to 136,780.12, 205,168.02 and 70,181.80

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Solution

The fourth proportional to 136,780.12, 205,168.02 and 70,181.80 is: 105,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,780.12 : 205,168.02 = 70,181.80 : x
  2. Step 2: Convert to fraction form
    136,780.12/205,168.02 = 70,181.80/x
  3. Step 3: Cross multiply
    136,780.12x = 205,168.02 × 70,181.80
  4. Step 4: Simplify right side
    136,780.12x = 14,399,060,946.04
  5. Step 5: Solve for x
    x = 14,399,060,946.04/136,780.12
  6. Step 6: Final answer
    x = 105,271.59

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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.