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Finding the Fourth Proportional to 145,850.80, 218,776.20 and 110,421.40

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Solution

The fourth proportional to 145,850.80, 218,776.20 and 110,421.40 is: 165,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.80 : 218,776.20 = 110,421.40 : x
  2. Step 2: Convert to fraction form
    145,850.80/218,776.20 = 110,421.40/x
  3. Step 3: Cross multiply
    145,850.80x = 218,776.20 × 110,421.40
  4. Step 4: Simplify right side
    145,850.80x = 24,157,574,290.68
  5. Step 5: Solve for x
    x = 24,157,574,290.68/145,850.80
  6. Step 6: Final answer
    x = 165,632.10

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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.