Home / 104,185.40-143,775.36-56,438.87

Finding the Fourth Proportional to 104,185.40, 143,775.36 and 56,438.87

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Solution

The fourth proportional to 104,185.40, 143,775.36 and 56,438.87 is: 77,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,185.40 : 143,775.36 = 56,438.87 : x
  2. Step 2: Convert to fraction form
    104,185.40/143,775.36 = 56,438.87/x
  3. Step 3: Cross multiply
    104,185.40x = 143,775.36 × 56,438.87
  4. Step 4: Simplify right side
    104,185.40x = 8,114,518,133.37
  5. Step 5: Solve for x
    x = 8,114,518,133.37/104,185.40
  6. Step 6: Final answer
    x = 77,885.37

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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.