Home / 103,368.36-142,663.95-63,105.60

Finding the Fourth Proportional to 103,368.36, 142,663.95 and 63,105.60

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Solution

The fourth proportional to 103,368.36, 142,663.95 and 63,105.60 is: 87,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,368.36 : 142,663.95 = 63,105.60 : x
  2. Step 2: Convert to fraction form
    103,368.36/142,663.95 = 63,105.60/x
  3. Step 3: Cross multiply
    103,368.36x = 142,663.95 × 63,105.60
  4. Step 4: Simplify right side
    103,368.36x = 9,002,894,163.12
  5. Step 5: Solve for x
    x = 9,002,894,163.12/103,368.36
  6. Step 6: Final answer
    x = 87,095.26

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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.