Home / 136,125.02-187,855.78-75,698.20

Finding the Fourth Proportional to 136,125.02, 187,855.78 and 75,698.20

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Solution

The fourth proportional to 136,125.02, 187,855.78 and 75,698.20 is: 104,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,125.02 : 187,855.78 = 75,698.20 : x
  2. Step 2: Convert to fraction form
    136,125.02/187,855.78 = 75,698.20/x
  3. Step 3: Cross multiply
    136,125.02x = 187,855.78 × 75,698.20
  4. Step 4: Simplify right side
    136,125.02x = 14,220,344,405.60
  5. Step 5: Solve for x
    x = 14,220,344,405.60/136,125.02
  6. Step 6: Final answer
    x = 104,465.32

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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.