Home / 145,438.07-218,161.88-40,248.23

Finding the Fourth Proportional to 145,438.07, 218,161.88 and 40,248.23

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Solution

The fourth proportional to 145,438.07, 218,161.88 and 40,248.23 is: 60,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.07 : 218,161.88 = 40,248.23 : x
  2. Step 2: Convert to fraction form
    145,438.07/218,161.88 = 40,248.23/x
  3. Step 3: Cross multiply
    145,438.07x = 218,161.88 × 40,248.23
  4. Step 4: Simplify right side
    145,438.07x = 8,780,629,523.47
  5. Step 5: Solve for x
    x = 8,780,629,523.47/145,438.07
  6. Step 6: Final answer
    x = 60,373.67

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1.5x scale

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.