Home / 125,505.04-173,215.08-75,208.72

Finding the Fourth Proportional to 125,505.04, 173,215.08 and 75,208.72

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Solution

The fourth proportional to 125,505.04, 173,215.08 and 75,208.72 is: 103,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505.04 : 173,215.08 = 75,208.72 : x
  2. Step 2: Convert to fraction form
    125,505.04/173,215.08 = 75,208.72/x
  3. Step 3: Cross multiply
    125,505.04x = 173,215.08 × 75,208.72
  4. Step 4: Simplify right side
    125,505.04x = 13,027,284,451.50
  5. Step 5: Solve for x
    x = 13,027,284,451.50/125,505.04
  6. Step 6: Final answer
    x = 103,798.89

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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.