Home / 230,127.12-317,574.62-128,153.88

Finding the Fourth Proportional to 230,127.12, 317,574.62 and 128,153.88

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Solution

The fourth proportional to 230,127.12, 317,574.62 and 128,153.88 is: 176,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,127.12 : 317,574.62 = 128,153.88 : x
  2. Step 2: Convert to fraction form
    230,127.12/317,574.62 = 128,153.88/x
  3. Step 3: Cross multiply
    230,127.12x = 317,574.62 × 128,153.88
  4. Step 4: Simplify right side
    230,127.12x = 40,698,419,742.53
  5. Step 5: Solve for x
    x = 40,698,419,742.53/230,127.12
  6. Step 6: Final answer
    x = 176,851.91

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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.