Home / 103,058.87-142,188.95-57,730.73

Finding the Fourth Proportional to 103,058.87, 142,188.95 and 57,730.73

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Solution

The fourth proportional to 103,058.87, 142,188.95 and 57,730.73 is: 79,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,058.87 : 142,188.95 = 57,730.73 : x
  2. Step 2: Convert to fraction form
    103,058.87/142,188.95 = 57,730.73/x
  3. Step 3: Cross multiply
    103,058.87x = 142,188.95 × 57,730.73
  4. Step 4: Simplify right side
    103,058.87x = 8,208,671,314.82
  5. Step 5: Solve for x
    x = 8,208,671,314.82/103,058.87
  6. Step 6: Final answer
    x = 79,650.32

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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.