Home / 207,754.12-286,563.06-128,127.88

Finding the Fourth Proportional to 207,754.12, 286,563.06 and 128,127.88

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Solution

The fourth proportional to 207,754.12, 286,563.06 and 128,127.88 is: 176,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,754.12 : 286,563.06 = 128,127.88 : x
  2. Step 2: Convert to fraction form
    207,754.12/286,563.06 = 128,127.88/x
  3. Step 3: Cross multiply
    207,754.12x = 286,563.06 × 128,127.88
  4. Step 4: Simplify right side
    207,754.12x = 36,716,717,364.11
  5. Step 5: Solve for x
    x = 36,716,717,364.11/207,754.12
  6. Step 6: Final answer
    x = 176,731.60

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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.