Home / 106,931.10-160,323.74-54,238.98

Finding the Fourth Proportional to 106,931.10, 160,323.74 and 54,238.98

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Solution

The fourth proportional to 106,931.10, 160,323.74 and 54,238.98 is: 81,321.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.10 : 160,323.74 = 54,238.98 : x
  2. Step 2: Convert to fraction form
    106,931.10/160,323.74 = 54,238.98/x
  3. Step 3: Cross multiply
    106,931.10x = 160,323.74 × 54,238.98
  4. Step 4: Simplify right side
    106,931.10x = 8,695,796,127.39
  5. Step 5: Solve for x
    x = 8,695,796,127.39/106,931.10
  6. Step 6: Final answer
    x = 81,321.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.