Home / 495,136.32-742,733.64-140,120.88

Finding the Fourth Proportional to 495,136.32, 742,733.64 and 140,120.88

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Solution

The fourth proportional to 495,136.32, 742,733.64 and 140,120.88 is: 210,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,136.32 : 742,733.64 = 140,120.88 : x
  2. Step 2: Convert to fraction form
    495,136.32/742,733.64 = 140,120.88/x
  3. Step 3: Cross multiply
    495,136.32x = 742,733.64 × 140,120.88
  4. Step 4: Simplify right side
    495,136.32x = 104,072,491,242.40
  5. Step 5: Solve for x
    x = 104,072,491,242.40/495,136.32
  6. Step 6: Final answer
    x = 210,189.57

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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.