Home / 100,950.24-139,314.51-57,937.62

Finding the Fourth Proportional to 100,950.24, 139,314.51 and 57,937.62

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Solution

The fourth proportional to 100,950.24, 139,314.51 and 57,937.62 is: 79,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,950.24 : 139,314.51 = 57,937.62 : x
  2. Step 2: Convert to fraction form
    100,950.24/139,314.51 = 57,937.62/x
  3. Step 3: Cross multiply
    100,950.24x = 139,314.51 × 57,937.62
  4. Step 4: Simplify right side
    100,950.24x = 8,071,551,140.87
  5. Step 5: Solve for x
    x = 8,071,551,140.87/100,950.24
  6. Step 6: Final answer
    x = 79,955.74

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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.