Home / 142,656.05-213,995.01-42,808.97

Finding the Fourth Proportional to 142,656.05, 213,995.01 and 42,808.97

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Solution

The fourth proportional to 142,656.05, 213,995.01 and 42,808.97 is: 64,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,656.05 : 213,995.01 = 42,808.97 : x
  2. Step 2: Convert to fraction form
    142,656.05/213,995.01 = 42,808.97/x
  3. Step 3: Cross multiply
    142,656.05x = 213,995.01 × 42,808.97
  4. Step 4: Simplify right side
    142,656.05x = 9,160,905,963.24
  5. Step 5: Solve for x
    x = 9,160,905,963.24/142,656.05
  6. Step 6: Final answer
    x = 64,216.74

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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.