Home / 142,396.20-196,444.98-85,775.04

Finding the Fourth Proportional to 142,396.20, 196,444.98 and 85,775.04

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Solution

The fourth proportional to 142,396.20, 196,444.98 and 85,775.04 is: 118,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,396.20 : 196,444.98 = 85,775.04 : x
  2. Step 2: Convert to fraction form
    142,396.20/196,444.98 = 85,775.04/x
  3. Step 3: Cross multiply
    142,396.20x = 196,444.98 × 85,775.04
  4. Step 4: Simplify right side
    142,396.20x = 16,850,076,017.30
  5. Step 5: Solve for x
    x = 16,850,076,017.30/142,396.20
  6. Step 6: Final answer
    x = 118,332.34

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1.5x scale

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.