Home / 103,317.62-142,541.64-67,528.28

Finding the Fourth Proportional to 103,317.62, 142,541.64 and 67,528.28

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Solution

The fourth proportional to 103,317.62, 142,541.64 and 67,528.28 is: 93,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,317.62 : 142,541.64 = 67,528.28 : x
  2. Step 2: Convert to fraction form
    103,317.62/142,541.64 = 67,528.28/x
  3. Step 3: Cross multiply
    103,317.62x = 142,541.64 × 67,528.28
  4. Step 4: Simplify right side
    103,317.62x = 9,625,591,064.87
  5. Step 5: Solve for x
    x = 9,625,591,064.87/103,317.62
  6. Step 6: Final answer
    x = 93,165.05

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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.