Home / 101,938.08-140,679.26-56,616.28

Finding the Fourth Proportional to 101,938.08, 140,679.26 and 56,616.28

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Solution

The fourth proportional to 101,938.08, 140,679.26 and 56,616.28 is: 78,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,938.08 : 140,679.26 = 56,616.28 : x
  2. Step 2: Convert to fraction form
    101,938.08/140,679.26 = 56,616.28/x
  3. Step 3: Cross multiply
    101,938.08x = 140,679.26 × 56,616.28
  4. Step 4: Simplify right side
    101,938.08x = 7,964,736,374.35
  5. Step 5: Solve for x
    x = 7,964,736,374.35/101,938.08
  6. Step 6: Final answer
    x = 78,133.08

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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.