Home / 215,159.90-296,920.68-118,365.12

Finding the Fourth Proportional to 215,159.90, 296,920.68 and 118,365.12

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Solution

The fourth proportional to 215,159.90, 296,920.68 and 118,365.12 is: 163,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,159.90 : 296,920.68 = 118,365.12 : x
  2. Step 2: Convert to fraction form
    215,159.90/296,920.68 = 118,365.12/x
  3. Step 3: Cross multiply
    215,159.90x = 296,920.68 × 118,365.12
  4. Step 4: Simplify right side
    215,159.90x = 35,145,051,918.68
  5. Step 5: Solve for x
    x = 35,145,051,918.68/215,159.90
  6. Step 6: Final answer
    x = 163,343.88

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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.