Home / 142,743.28-214,106.60-42,901.36

Finding the Fourth Proportional to 142,743.28, 214,106.60 and 42,901.36

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Solution

The fourth proportional to 142,743.28, 214,106.60 and 42,901.36 is: 64,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,743.28 : 214,106.60 = 42,901.36 : x
  2. Step 2: Convert to fraction form
    142,743.28/214,106.60 = 42,901.36/x
  3. Step 3: Cross multiply
    142,743.28x = 214,106.60 × 42,901.36
  4. Step 4: Simplify right side
    142,743.28x = 9,185,464,324.98
  5. Step 5: Solve for x
    x = 9,185,464,324.98/142,743.28
  6. Step 6: Final answer
    x = 64,349.54

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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.