Home / 123,929.90-171,022.83-70,225.15

Finding the Fourth Proportional to 123,929.90, 171,022.83 and 70,225.15

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Solution

The fourth proportional to 123,929.90, 171,022.83 and 70,225.15 is: 96,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,929.90 : 171,022.83 = 70,225.15 : x
  2. Step 2: Convert to fraction form
    123,929.90/171,022.83 = 70,225.15/x
  3. Step 3: Cross multiply
    123,929.90x = 171,022.83 × 70,225.15
  4. Step 4: Simplify right side
    123,929.90x = 12,010,103,890.17
  5. Step 5: Solve for x
    x = 12,010,103,890.17/123,929.90
  6. Step 6: Final answer
    x = 96,910.46

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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.