Home / 152,536.47-210,508.07-87,981.69

Finding the Fourth Proportional to 152,536.47, 210,508.07 and 87,981.69

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Solution

The fourth proportional to 152,536.47, 210,508.07 and 87,981.69 is: 121,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,536.47 : 210,508.07 = 87,981.69 : x
  2. Step 2: Convert to fraction form
    152,536.47/210,508.07 = 87,981.69/x
  3. Step 3: Cross multiply
    152,536.47x = 210,508.07 × 87,981.69
  4. Step 4: Simplify right side
    152,536.47x = 18,520,856,106.74
  5. Step 5: Solve for x
    x = 18,520,856,106.74/152,536.47
  6. Step 6: Final answer
    x = 121,419.20

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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.