Home / 160,738.77-221,815.49-89,118.57

Finding the Fourth Proportional to 160,738.77, 221,815.49 and 89,118.57

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Solution

The fourth proportional to 160,738.77, 221,815.49 and 89,118.57 is: 122,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,738.77 : 221,815.49 = 89,118.57 : x
  2. Step 2: Convert to fraction form
    160,738.77/221,815.49 = 89,118.57/x
  3. Step 3: Cross multiply
    160,738.77x = 221,815.49 × 89,118.57
  4. Step 4: Simplify right side
    160,738.77x = 19,767,878,827.06
  5. Step 5: Solve for x
    x = 19,767,878,827.06/160,738.77
  6. Step 6: Final answer
    x = 122,981.40

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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.