Home / 142,147.64-213,143.02-57,886.20

Finding the Fourth Proportional to 142,147.64, 213,143.02 and 57,886.20

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Solution

The fourth proportional to 142,147.64, 213,143.02 and 57,886.20 is: 86,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,147.64 : 213,143.02 = 57,886.20 : x
  2. Step 2: Convert to fraction form
    142,147.64/213,143.02 = 57,886.20/x
  3. Step 3: Cross multiply
    142,147.64x = 213,143.02 × 57,886.20
  4. Step 4: Simplify right side
    142,147.64x = 12,338,039,484.32
  5. Step 5: Solve for x
    x = 12,338,039,484.32/142,147.64
  6. Step 6: Final answer
    x = 86,797.36

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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.