Home / 103,068.30-142,238.32-57,746.64

Finding the Fourth Proportional to 103,068.30, 142,238.32 and 57,746.64

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Solution

The fourth proportional to 103,068.30, 142,238.32 and 57,746.64 is: 79,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,068.30 : 142,238.32 = 57,746.64 : x
  2. Step 2: Convert to fraction form
    103,068.30/142,238.32 = 57,746.64/x
  3. Step 3: Cross multiply
    103,068.30x = 142,238.32 × 57,746.64
  4. Step 4: Simplify right side
    103,068.30x = 8,213,785,059.24
  5. Step 5: Solve for x
    x = 8,213,785,059.24/103,068.30
  6. Step 6: Final answer
    x = 79,692.64

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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.