Home / 160,449.56-221,411.95-87,838.55

Finding the Fourth Proportional to 160,449.56, 221,411.95 and 87,838.55

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Solution

The fourth proportional to 160,449.56, 221,411.95 and 87,838.55 is: 121,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,449.56 : 221,411.95 = 87,838.55 : x
  2. Step 2: Convert to fraction form
    160,449.56/221,411.95 = 87,838.55/x
  3. Step 3: Cross multiply
    160,449.56x = 221,411.95 × 87,838.55
  4. Step 4: Simplify right side
    160,449.56x = 19,448,504,640.67
  5. Step 5: Solve for x
    x = 19,448,504,640.67/160,449.56
  6. Step 6: Final answer
    x = 121,212.58

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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.