Home / 158,812.52-219,161.70-87,197.18

Finding the Fourth Proportional to 158,812.52, 219,161.70 and 87,197.18

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Solution

The fourth proportional to 158,812.52, 219,161.70 and 87,197.18 is: 120,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,812.52 : 219,161.70 = 87,197.18 : x
  2. Step 2: Convert to fraction form
    158,812.52/219,161.70 = 87,197.18/x
  3. Step 3: Cross multiply
    158,812.52x = 219,161.70 × 87,197.18
  4. Step 4: Simplify right side
    158,812.52x = 19,110,281,108.20
  5. Step 5: Solve for x
    x = 19,110,281,108.20/158,812.52
  6. Step 6: Final answer
    x = 120,332.34

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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.