Home / 155,101.29-213,985.28-101,417.73

Finding the Fourth Proportional to 155,101.29, 213,985.28 and 101,417.73

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Solution

The fourth proportional to 155,101.29, 213,985.28 and 101,417.73 is: 139,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,101.29 : 213,985.28 = 101,417.73 : x
  2. Step 2: Convert to fraction form
    155,101.29/213,985.28 = 101,417.73/x
  3. Step 3: Cross multiply
    155,101.29x = 213,985.28 × 101,417.73
  4. Step 4: Simplify right side
    155,101.29x = 21,701,901,632.43
  5. Step 5: Solve for x
    x = 21,701,901,632.43/155,101.29
  6. Step 6: Final answer
    x = 139,920.83

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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.