Home / 215,969.74-297,964.75-131,070.40

Finding the Fourth Proportional to 215,969.74, 297,964.75 and 131,070.40

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Solution

The fourth proportional to 215,969.74, 297,964.75 and 131,070.40 is: 180,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,969.74 : 297,964.75 = 131,070.40 : x
  2. Step 2: Convert to fraction form
    215,969.74/297,964.75 = 131,070.40/x
  3. Step 3: Cross multiply
    215,969.74x = 297,964.75 × 131,070.40
  4. Step 4: Simplify right side
    215,969.74x = 39,054,357,895.81
  5. Step 5: Solve for x
    x = 39,054,357,895.81/215,969.74
  6. Step 6: Final answer
    x = 180,832.55

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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.