Home / 158,011.72-218,002.75-89,980.46

Finding the Fourth Proportional to 158,011.72, 218,002.75 and 89,980.46

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Solution

The fourth proportional to 158,011.72, 218,002.75 and 89,980.46 is: 124,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,011.72 : 218,002.75 = 89,980.46 : x
  2. Step 2: Convert to fraction form
    158,011.72/218,002.75 = 89,980.46/x
  3. Step 3: Cross multiply
    158,011.72x = 218,002.75 × 89,980.46
  4. Step 4: Simplify right side
    158,011.72x = 19,615,987,734.95
  5. Step 5: Solve for x
    x = 19,615,987,734.95/158,011.72
  6. Step 6: Final answer
    x = 124,142.61

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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.