Home / 104,761.32-157,141.98-86,254.44

Finding the Fourth Proportional to 104,761.32, 157,141.98 and 86,254.44

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Solution

The fourth proportional to 104,761.32, 157,141.98 and 86,254.44 is: 129,381.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,761.32 : 157,141.98 = 86,254.44 : x
  2. Step 2: Convert to fraction form
    104,761.32/157,141.98 = 86,254.44/x
  3. Step 3: Cross multiply
    104,761.32x = 157,141.98 × 86,254.44
  4. Step 4: Simplify right side
    104,761.32x = 13,554,193,485.39
  5. Step 5: Solve for x
    x = 13,554,193,485.39/104,761.32
  6. Step 6: Final answer
    x = 129,381.66

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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.