Home / 430,087.88-645,117.08-110,242.89

Finding the Fourth Proportional to 430,087.88, 645,117.08 and 110,242.89

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Solution

The fourth proportional to 430,087.88, 645,117.08 and 110,242.89 is: 165,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,087.88 : 645,117.08 = 110,242.89 : x
  2. Step 2: Convert to fraction form
    430,087.88/645,117.08 = 110,242.89/x
  3. Step 3: Cross multiply
    430,087.88x = 645,117.08 × 110,242.89
  4. Step 4: Simplify right side
    430,087.88x = 71,119,570,736.35
  5. Step 5: Solve for x
    x = 71,119,570,736.35/430,087.88
  6. Step 6: Final answer
    x = 165,360.55

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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.