Home / 158,113.45-218,194.79-86,492.62

Finding the Fourth Proportional to 158,113.45, 218,194.79 and 86,492.62

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Solution

The fourth proportional to 158,113.45, 218,194.79 and 86,492.62 is: 119,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,113.45 : 218,194.79 = 86,492.62 : x
  2. Step 2: Convert to fraction form
    158,113.45/218,194.79 = 86,492.62/x
  3. Step 3: Cross multiply
    158,113.45x = 218,194.79 × 86,492.62
  4. Step 4: Simplify right side
    158,113.45x = 18,872,239,057.45
  5. Step 5: Solve for x
    x = 18,872,239,057.45/158,113.45
  6. Step 6: Final answer
    x = 119,358.85

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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.