Home / 103,822.60-143,276.52-61,380.76

Finding the Fourth Proportional to 103,822.60, 143,276.52 and 61,380.76

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Solution

The fourth proportional to 103,822.60, 143,276.52 and 61,380.76 is: 84,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,822.60 : 143,276.52 = 61,380.76 : x
  2. Step 2: Convert to fraction form
    103,822.60/143,276.52 = 61,380.76/x
  3. Step 3: Cross multiply
    103,822.60x = 143,276.52 × 61,380.76
  4. Step 4: Simplify right side
    103,822.60x = 8,794,421,559.74
  5. Step 5: Solve for x
    x = 8,794,421,559.74/103,822.60
  6. Step 6: Final answer
    x = 84,706.24

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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.