Home / 236,913.61-355,159.23-87,117.78

Finding the Fourth Proportional to 236,913.61, 355,159.23 and 87,117.78

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Solution

The fourth proportional to 236,913.61, 355,159.23 and 87,117.78 is: 130,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,913.61 : 355,159.23 = 87,117.78 : x
  2. Step 2: Convert to fraction form
    236,913.61/355,159.23 = 87,117.78/x
  3. Step 3: Cross multiply
    236,913.61x = 355,159.23 × 87,117.78
  4. Step 4: Simplify right side
    236,913.61x = 30,940,683,161.53
  5. Step 5: Solve for x
    x = 30,940,683,161.53/236,913.61
  6. Step 6: Final answer
    x = 130,599.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.