Home / 160,236.42-221,119.58-87,638.16

Finding the Fourth Proportional to 160,236.42, 221,119.58 and 87,638.16

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Solution

The fourth proportional to 160,236.42, 221,119.58 and 87,638.16 is: 120,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,236.42 : 221,119.58 = 87,638.16 : x
  2. Step 2: Convert to fraction form
    160,236.42/221,119.58 = 87,638.16/x
  3. Step 3: Cross multiply
    160,236.42x = 221,119.58 × 87,638.16
  4. Step 4: Simplify right side
    160,236.42x = 19,378,513,131.17
  5. Step 5: Solve for x
    x = 19,378,513,131.17/160,236.42
  6. Step 6: Final answer
    x = 120,937.01

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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.