Home / 215,585.51-297,488.70-120,090.15

Finding the Fourth Proportional to 215,585.51, 297,488.70 and 120,090.15

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Solution

The fourth proportional to 215,585.51, 297,488.70 and 120,090.15 is: 165,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,585.51 : 297,488.70 = 120,090.15 : x
  2. Step 2: Convert to fraction form
    215,585.51/297,488.70 = 120,090.15/x
  3. Step 3: Cross multiply
    215,585.51x = 297,488.70 × 120,090.15
  4. Step 4: Simplify right side
    215,585.51x = 35,725,462,606.31
  5. Step 5: Solve for x
    x = 35,725,462,606.31/215,585.51
  6. Step 6: Final answer
    x = 165,713.66

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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.