Home / 145,128.46-217,776.75-60,881.09

Finding the Fourth Proportional to 145,128.46, 217,776.75 and 60,881.09

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Solution

The fourth proportional to 145,128.46, 217,776.75 and 60,881.09 is: 91,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,128.46 : 217,776.75 = 60,881.09 : x
  2. Step 2: Convert to fraction form
    145,128.46/217,776.75 = 60,881.09/x
  3. Step 3: Cross multiply
    145,128.46x = 217,776.75 × 60,881.09
  4. Step 4: Simplify right side
    145,128.46x = 13,258,485,916.66
  5. Step 5: Solve for x
    x = 13,258,485,916.66/145,128.46
  6. Step 6: Final answer
    x = 91,356.90

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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.