Home / 175,631.40-263,440.70-70,421.80

Finding the Fourth Proportional to 175,631.40, 263,440.70 and 70,421.80

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Solution

The fourth proportional to 175,631.40, 263,440.70 and 70,421.80 is: 105,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,631.40 : 263,440.70 = 70,421.80 : x
  2. Step 2: Convert to fraction form
    175,631.40/263,440.70 = 70,421.80/x
  3. Step 3: Cross multiply
    175,631.40x = 263,440.70 × 70,421.80
  4. Step 4: Simplify right side
    175,631.40x = 18,551,968,287.26
  5. Step 5: Solve for x
    x = 18,551,968,287.26/175,631.40
  6. Step 6: Final answer
    x = 105,630.13

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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.