Home / 130,214.85-179,703.48-72,850.75

Finding the Fourth Proportional to 130,214.85, 179,703.48 and 72,850.75

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Solution

The fourth proportional to 130,214.85, 179,703.48 and 72,850.75 is: 100,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,214.85 : 179,703.48 = 72,850.75 : x
  2. Step 2: Convert to fraction form
    130,214.85/179,703.48 = 72,850.75/x
  3. Step 3: Cross multiply
    130,214.85x = 179,703.48 × 72,850.75
  4. Step 4: Simplify right side
    130,214.85x = 13,091,534,011.71
  5. Step 5: Solve for x
    x = 13,091,534,011.71/130,214.85
  6. Step 6: Final answer
    x = 100,537.95

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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.