Home / 230,526.17-318,127.49-128,558.07

Finding the Fourth Proportional to 230,526.17, 318,127.49 and 128,558.07

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Solution

The fourth proportional to 230,526.17, 318,127.49 and 128,558.07 is: 177,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,526.17 : 318,127.49 = 128,558.07 : x
  2. Step 2: Convert to fraction form
    230,526.17/318,127.49 = 128,558.07/x
  3. Step 3: Cross multiply
    230,526.17x = 318,127.49 × 128,558.07
  4. Step 4: Simplify right side
    230,526.17x = 40,897,856,449.74
  5. Step 5: Solve for x
    x = 40,897,856,449.74/230,526.17
  6. Step 6: Final answer
    x = 177,410.91

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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.