Home / 199,389.36-275,088.40-127,808.88

Finding the Fourth Proportional to 199,389.36, 275,088.40 and 127,808.88

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Solution

The fourth proportional to 199,389.36, 275,088.40 and 127,808.88 is: 176,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,389.36 : 275,088.40 = 127,808.88 : x
  2. Step 2: Convert to fraction form
    199,389.36/275,088.40 = 127,808.88/x
  3. Step 3: Cross multiply
    199,389.36x = 275,088.40 × 127,808.88
  4. Step 4: Simplify right side
    199,389.36x = 35,158,740,304.99
  5. Step 5: Solve for x
    x = 35,158,740,304.99/199,389.36
  6. Step 6: Final answer
    x = 176,332.08

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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.