Home / 103,447.12-142,773.24-61,010.32

Finding the Fourth Proportional to 103,447.12, 142,773.24 and 61,010.32

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Solution

The fourth proportional to 103,447.12, 142,773.24 and 61,010.32 is: 84,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,447.12 : 142,773.24 = 61,010.32 : x
  2. Step 2: Convert to fraction form
    103,447.12/142,773.24 = 61,010.32/x
  3. Step 3: Cross multiply
    103,447.12x = 142,773.24 × 61,010.32
  4. Step 4: Simplify right side
    103,447.12x = 8,710,641,059.84
  5. Step 5: Solve for x
    x = 8,710,641,059.84/103,447.12
  6. Step 6: Final answer
    x = 84,203.80

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1.5x scale

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.