Home / 215,670.04-297,530.76-129,662.62

Finding the Fourth Proportional to 215,670.04, 297,530.76 and 129,662.62

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Solution

The fourth proportional to 215,670.04, 297,530.76 and 129,662.62 is: 178,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,670.04 : 297,530.76 = 129,662.62 : x
  2. Step 2: Convert to fraction form
    215,670.04/297,530.76 = 129,662.62/x
  3. Step 3: Cross multiply
    215,670.04x = 297,530.76 × 129,662.62
  4. Step 4: Simplify right side
    215,670.04x = 38,578,617,872.19
  5. Step 5: Solve for x
    x = 38,578,617,872.19/215,670.04
  6. Step 6: Final answer
    x = 178,877.97

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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.