Home / 125,515.04-173,228.88-75,218.72

Finding the Fourth Proportional to 125,515.04, 173,228.88 and 75,218.72

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Solution

The fourth proportional to 125,515.04, 173,228.88 and 75,218.72 is: 103,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,515.04 : 173,228.88 = 75,218.72 : x
  2. Step 2: Convert to fraction form
    125,515.04/173,228.88 = 75,218.72/x
  3. Step 3: Cross multiply
    125,515.04x = 173,228.88 × 75,218.72
  4. Step 4: Simplify right side
    125,515.04x = 13,030,054,620.63
  5. Step 5: Solve for x
    x = 13,030,054,620.63/125,515.04
  6. Step 6: Final answer
    x = 103,812.70

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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.