Home / 103,361.58-142,646.08-57,426.76

Finding the Fourth Proportional to 103,361.58, 142,646.08 and 57,426.76

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Solution

The fourth proportional to 103,361.58, 142,646.08 and 57,426.76 is: 79,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,361.58 : 142,646.08 = 57,426.76 : x
  2. Step 2: Convert to fraction form
    103,361.58/142,646.08 = 57,426.76/x
  3. Step 3: Cross multiply
    103,361.58x = 142,646.08 × 57,426.76
  4. Step 4: Simplify right side
    103,361.58x = 8,191,702,201.10
  5. Step 5: Solve for x
    x = 8,191,702,201.10/103,361.58
  6. Step 6: Final answer
    x = 79,252.87

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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.