Home / 101,962.28-140,710.52-56,638.08

Finding the Fourth Proportional to 101,962.28, 140,710.52 and 56,638.08

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Solution

The fourth proportional to 101,962.28, 140,710.52 and 56,638.08 is: 78,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,962.28 : 140,710.52 = 56,638.08 : x
  2. Step 2: Convert to fraction form
    101,962.28/140,710.52 = 56,638.08/x
  3. Step 3: Cross multiply
    101,962.28x = 140,710.52 × 56,638.08
  4. Step 4: Simplify right side
    101,962.28x = 7,969,573,688.60
  5. Step 5: Solve for x
    x = 7,969,573,688.60/101,962.28
  6. Step 6: Final answer
    x = 78,161.98

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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.