Home / 203,312.09-280,538.03-127,807.13

Finding the Fourth Proportional to 203,312.09, 280,538.03 and 127,807.13

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Solution

The fourth proportional to 203,312.09, 280,538.03 and 127,807.13 is: 176,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,312.09 : 280,538.03 = 127,807.13 : x
  2. Step 2: Convert to fraction form
    203,312.09/280,538.03 = 127,807.13/x
  3. Step 3: Cross multiply
    203,312.09x = 280,538.03 × 127,807.13
  4. Step 4: Simplify right side
    203,312.09x = 35,854,759,831.12
  5. Step 5: Solve for x
    x = 35,854,759,831.12/203,312.09
  6. Step 6: Final answer
    x = 176,353.31

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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.