Home / 102,945.01-142,057.54-57,615.36

Finding the Fourth Proportional to 102,945.01, 142,057.54 and 57,615.36

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Solution

The fourth proportional to 102,945.01, 142,057.54 and 57,615.36 is: 79,505.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,945.01 : 142,057.54 = 57,615.36 : x
  2. Step 2: Convert to fraction form
    102,945.01/142,057.54 = 57,615.36/x
  3. Step 3: Cross multiply
    102,945.01x = 142,057.54 × 57,615.36
  4. Step 4: Simplify right side
    102,945.01x = 8,184,696,307.81
  5. Step 5: Solve for x
    x = 8,184,696,307.81/102,945.01
  6. Step 6: Final answer
    x = 79,505.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.