Home / 145,880.06-218,732.60-66,895.34

Finding the Fourth Proportional to 145,880.06, 218,732.60 and 66,895.34

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Solution

The fourth proportional to 145,880.06, 218,732.60 and 66,895.34 is: 100,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,880.06 : 218,732.60 = 66,895.34 : x
  2. Step 2: Convert to fraction form
    145,880.06/218,732.60 = 66,895.34/x
  3. Step 3: Cross multiply
    145,880.06x = 218,732.60 × 66,895.34
  4. Step 4: Simplify right side
    145,880.06x = 14,632,191,646.08
  5. Step 5: Solve for x
    x = 14,632,191,646.08/145,880.06
  6. Step 6: Final answer
    x = 100,302.89

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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.