Home / 142,139.64-213,283.44-57,961.92

Finding the Fourth Proportional to 142,139.64, 213,283.44 and 57,961.92

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Solution

The fourth proportional to 142,139.64, 213,283.44 and 57,961.92 is: 86,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,139.64 : 213,283.44 = 57,961.92 : x
  2. Step 2: Convert to fraction form
    142,139.64/213,283.44 = 57,961.92/x
  3. Step 3: Cross multiply
    142,139.64x = 213,283.44 × 57,961.92
  4. Step 4: Simplify right side
    142,139.64x = 12,362,317,686.60
  5. Step 5: Solve for x
    x = 12,362,317,686.60/142,139.64
  6. Step 6: Final answer
    x = 86,973.05

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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.