Home / 128,950.32-193,485.08-58,851.12

Finding the Fourth Proportional to 128,950.32, 193,485.08 and 58,851.12

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Solution

The fourth proportional to 128,950.32, 193,485.08 and 58,851.12 is: 88,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,950.32 : 193,485.08 = 58,851.12 : x
  2. Step 2: Convert to fraction form
    128,950.32/193,485.08 = 58,851.12/x
  3. Step 3: Cross multiply
    128,950.32x = 193,485.08 × 58,851.12
  4. Step 4: Simplify right side
    128,950.32x = 11,386,813,661.29
  5. Step 5: Solve for x
    x = 11,386,813,661.29/128,950.32
  6. Step 6: Final answer
    x = 88,303.88

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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.