Home / 230,941.53-318,671.01-128,972.52

Finding the Fourth Proportional to 230,941.53, 318,671.01 and 128,972.52

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Solution

The fourth proportional to 230,941.53, 318,671.01 and 128,972.52 is: 177,966.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,941.53 : 318,671.01 = 128,972.52 : x
  2. Step 2: Convert to fraction form
    230,941.53/318,671.01 = 128,972.52/x
  3. Step 3: Cross multiply
    230,941.53x = 318,671.01 × 128,972.52
  4. Step 4: Simplify right side
    230,941.53x = 41,099,803,210.65
  5. Step 5: Solve for x
    x = 41,099,803,210.65/230,941.53
  6. Step 6: Final answer
    x = 177,966.27

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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.