Home / 103,614.58-142,977.31-58,288.70

Finding the Fourth Proportional to 103,614.58, 142,977.31 and 58,288.70

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Solution

The fourth proportional to 103,614.58, 142,977.31 and 58,288.70 is: 80,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.58 : 142,977.31 = 58,288.70 : x
  2. Step 2: Convert to fraction form
    103,614.58/142,977.31 = 58,288.70/x
  3. Step 3: Cross multiply
    103,614.58x = 142,977.31 × 58,288.70
  4. Step 4: Simplify right side
    103,614.58x = 8,333,961,529.40
  5. Step 5: Solve for x
    x = 8,333,961,529.40/103,614.58
  6. Step 6: Final answer
    x = 80,432.32

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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.