Home / 423,096.60-634,626.90-142,613.40

Finding the Fourth Proportional to 423,096.60, 634,626.90 and 142,613.40

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Solution

The fourth proportional to 423,096.60, 634,626.90 and 142,613.40 is: 213,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,096.60 : 634,626.90 = 142,613.40 : x
  2. Step 2: Convert to fraction form
    423,096.60/634,626.90 = 142,613.40/x
  3. Step 3: Cross multiply
    423,096.60x = 634,626.90 × 142,613.40
  4. Step 4: Simplify right side
    423,096.60x = 90,506,299,940.46
  5. Step 5: Solve for x
    x = 90,506,299,940.46/423,096.60
  6. Step 6: Final answer
    x = 213,914.03

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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.