Home / 136,421.70-204,632.55-42,927.45

Finding the Fourth Proportional to 136,421.70, 204,632.55 and 42,927.45

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Solution

The fourth proportional to 136,421.70, 204,632.55 and 42,927.45 is: 64,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,421.70 : 204,632.55 = 42,927.45 : x
  2. Step 2: Convert to fraction form
    136,421.70/204,632.55 = 42,927.45/x
  3. Step 3: Cross multiply
    136,421.70x = 204,632.55 × 42,927.45
  4. Step 4: Simplify right side
    136,421.70x = 8,784,353,558.50
  5. Step 5: Solve for x
    x = 8,784,353,558.50/136,421.70
  6. Step 6: Final answer
    x = 64,391.18

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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.