Home / 142,758.40-197,102.82-127,602.49

Finding the Fourth Proportional to 142,758.40, 197,102.82 and 127,602.49

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Solution

The fourth proportional to 142,758.40, 197,102.82 and 127,602.49 is: 176,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758.40 : 197,102.82 = 127,602.49 : x
  2. Step 2: Convert to fraction form
    142,758.40/197,102.82 = 127,602.49/x
  3. Step 3: Cross multiply
    142,758.40x = 197,102.82 × 127,602.49
  4. Step 4: Simplify right side
    142,758.40x = 25,150,810,618.02
  5. Step 5: Solve for x
    x = 25,150,810,618.02/142,758.40
  6. Step 6: Final answer
    x = 176,177.45

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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.