Home / 212,723.09-293,572.39-129,972.50

Finding the Fourth Proportional to 212,723.09, 293,572.39 and 129,972.50

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Solution

The fourth proportional to 212,723.09, 293,572.39 and 129,972.50 is: 179,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,723.09 : 293,572.39 = 129,972.50 : x
  2. Step 2: Convert to fraction form
    212,723.09/293,572.39 = 129,972.50/x
  3. Step 3: Cross multiply
    212,723.09x = 293,572.39 × 129,972.50
  4. Step 4: Simplify right side
    212,723.09x = 38,156,337,459.28
  5. Step 5: Solve for x
    x = 38,156,337,459.28/212,723.09
  6. Step 6: Final answer
    x = 179,370.93

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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.