Home / 109,675.90-164,538.15-86,056.30

Finding the Fourth Proportional to 109,675.90, 164,538.15 and 86,056.30

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Solution

The fourth proportional to 109,675.90, 164,538.15 and 86,056.30 is: 129,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,675.90 : 164,538.15 = 86,056.30 : x
  2. Step 2: Convert to fraction form
    109,675.90/164,538.15 = 86,056.30/x
  3. Step 3: Cross multiply
    109,675.90x = 164,538.15 × 86,056.30
  4. Step 4: Simplify right side
    109,675.90x = 14,159,544,397.85
  5. Step 5: Solve for x
    x = 14,159,544,397.85/109,675.90
  6. Step 6: Final answer
    x = 129,103.52

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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.