Home / 142,617.48-196,750.32-85,997.40

Finding the Fourth Proportional to 142,617.48, 196,750.32 and 85,997.40

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Solution

The fourth proportional to 142,617.48, 196,750.32 and 85,997.40 is: 118,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,617.48 : 196,750.32 = 85,997.40 : x
  2. Step 2: Convert to fraction form
    142,617.48/196,750.32 = 85,997.40/x
  3. Step 3: Cross multiply
    142,617.48x = 196,750.32 × 85,997.40
  4. Step 4: Simplify right side
    142,617.48x = 16,920,015,969.17
  5. Step 5: Solve for x
    x = 16,920,015,969.17/142,617.48
  6. Step 6: Final answer
    x = 118,639.15

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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.