Home / 158,941.64-219,330.38-87,320.23

Finding the Fourth Proportional to 158,941.64, 219,330.38 and 87,320.23

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Solution

The fourth proportional to 158,941.64, 219,330.38 and 87,320.23 is: 120,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,941.64 : 219,330.38 = 87,320.23 : x
  2. Step 2: Convert to fraction form
    158,941.64/219,330.38 = 87,320.23/x
  3. Step 3: Cross multiply
    158,941.64x = 219,330.38 × 87,320.23
  4. Step 4: Simplify right side
    158,941.64x = 19,151,978,897.56
  5. Step 5: Solve for x
    x = 19,151,978,897.56/158,941.64
  6. Step 6: Final answer
    x = 120,496.92

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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.