Home / 160,528.39-221,529.22-87,931.61

Finding the Fourth Proportional to 160,528.39, 221,529.22 and 87,931.61

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Solution

The fourth proportional to 160,528.39, 221,529.22 and 87,931.61 is: 121,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,528.39 : 221,529.22 = 87,931.61 : x
  2. Step 2: Convert to fraction form
    160,528.39/221,529.22 = 87,931.61/x
  3. Step 3: Cross multiply
    160,528.39x = 221,529.22 × 87,931.61
  4. Step 4: Simplify right side
    160,528.39x = 19,479,420,976.64
  5. Step 5: Solve for x
    x = 19,479,420,976.64/160,528.39
  6. Step 6: Final answer
    x = 121,345.64

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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.