Home / 158,812.54-219,161.70-87,197.17

Finding the Fourth Proportional to 158,812.54, 219,161.70 and 87,197.17

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Solution

The fourth proportional to 158,812.54, 219,161.70 and 87,197.17 is: 120,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,812.54 : 219,161.70 = 87,197.17 : x
  2. Step 2: Convert to fraction form
    158,812.54/219,161.70 = 87,197.17/x
  3. Step 3: Cross multiply
    158,812.54x = 219,161.70 × 87,197.17
  4. Step 4: Simplify right side
    158,812.54x = 19,110,280,012.39
  5. Step 5: Solve for x
    x = 19,110,280,012.39/158,812.54
  6. Step 6: Final answer
    x = 120,332.31

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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.