Home / 125,127.12-172,674.57-67,765.12

Finding the Fourth Proportional to 125,127.12, 172,674.57 and 67,765.12

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Solution

The fourth proportional to 125,127.12, 172,674.57 and 67,765.12 is: 93,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.12 : 172,674.57 = 67,765.12 : x
  2. Step 2: Convert to fraction form
    125,127.12/172,674.57 = 67,765.12/x
  3. Step 3: Cross multiply
    125,127.12x = 172,674.57 × 67,765.12
  4. Step 4: Simplify right side
    125,127.12x = 11,701,312,450.49
  5. Step 5: Solve for x
    x = 11,701,312,450.49/125,127.12
  6. Step 6: Final answer
    x = 93,515.40

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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.