Home / 149,328.75-223,915.36-70,421.79

Finding the Fourth Proportional to 149,328.75, 223,915.36 and 70,421.79

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Solution

The fourth proportional to 149,328.75, 223,915.36 and 70,421.79 is: 105,596.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,328.75 : 223,915.36 = 70,421.79 : x
  2. Step 2: Convert to fraction form
    149,328.75/223,915.36 = 70,421.79/x
  3. Step 3: Cross multiply
    149,328.75x = 223,915.36 × 70,421.79
  4. Step 4: Simplify right side
    149,328.75x = 15,768,520,459.69
  5. Step 5: Solve for x
    x = 15,768,520,459.69/149,328.75
  6. Step 6: Final answer
    x = 105,596.01

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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.