Home / 135,254.30-186,617.40-87,450.13

Finding the Fourth Proportional to 135,254.30, 186,617.40 and 87,450.13

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Solution

The fourth proportional to 135,254.30, 186,617.40 and 87,450.13 is: 120,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,254.30 : 186,617.40 = 87,450.13 : x
  2. Step 2: Convert to fraction form
    135,254.30/186,617.40 = 87,450.13/x
  3. Step 3: Cross multiply
    135,254.30x = 186,617.40 × 87,450.13
  4. Step 4: Simplify right side
    135,254.30x = 16,319,714,957.18
  5. Step 5: Solve for x
    x = 16,319,714,957.18/135,254.30
  6. Step 6: Final answer
    x = 120,659.49

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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.