Home / 131,426.77-197,551.65-86,735.32

Finding the Fourth Proportional to 131,426.77, 197,551.65 and 86,735.32

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Solution

The fourth proportional to 131,426.77, 197,551.65 and 86,735.32 is: 130,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.77 : 197,551.65 = 86,735.32 : x
  2. Step 2: Convert to fraction form
    131,426.77/197,551.65 = 86,735.32/x
  3. Step 3: Cross multiply
    131,426.77x = 197,551.65 × 86,735.32
  4. Step 4: Simplify right side
    131,426.77x = 17,134,705,579.28
  5. Step 5: Solve for x
    x = 17,134,705,579.28/131,426.77
  6. Step 6: Final answer
    x = 130,374.55

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1.5x scale

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.