Home / 151,622.70-209,222.58-87,948.18

Finding the Fourth Proportional to 151,622.70, 209,222.58 and 87,948.18

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Solution

The fourth proportional to 151,622.70, 209,222.58 and 87,948.18 is: 121,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,622.70 : 209,222.58 = 87,948.18 : x
  2. Step 2: Convert to fraction form
    151,622.70/209,222.58 = 87,948.18/x
  3. Step 3: Cross multiply
    151,622.70x = 209,222.58 × 87,948.18
  4. Step 4: Simplify right side
    151,622.70x = 18,400,745,125.90
  5. Step 5: Solve for x
    x = 18,400,745,125.90/151,622.70
  6. Step 6: Final answer
    x = 121,358.77

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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.