Home / 173,511.90-239,497.20-100,931.76

Finding the Fourth Proportional to 173,511.90, 239,497.20 and 100,931.76

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Solution

The fourth proportional to 173,511.90, 239,497.20 and 100,931.76 is: 139,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,511.90 : 239,497.20 = 100,931.76 : x
  2. Step 2: Convert to fraction form
    173,511.90/239,497.20 = 100,931.76/x
  3. Step 3: Cross multiply
    173,511.90x = 239,497.20 × 100,931.76
  4. Step 4: Simplify right side
    173,511.90x = 24,172,873,911.07
  5. Step 5: Solve for x
    x = 24,172,873,911.07/173,511.90
  6. Step 6: Final answer
    x = 139,315.37

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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.