Home / 129,405.02-194,094.68-40,656.14

Finding the Fourth Proportional to 129,405.02, 194,094.68 and 40,656.14

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Solution

The fourth proportional to 129,405.02, 194,094.68 and 40,656.14 is: 60,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,405.02 : 194,094.68 = 40,656.14 : x
  2. Step 2: Convert to fraction form
    129,405.02/194,094.68 = 40,656.14/x
  3. Step 3: Cross multiply
    129,405.02x = 194,094.68 × 40,656.14
  4. Step 4: Simplify right side
    129,405.02x = 7,891,140,483.34
  5. Step 5: Solve for x
    x = 7,891,140,483.34/129,405.02
  6. Step 6: Final answer
    x = 60,980.17

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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.