Home / 105,352.83-145,386.90-57,606.21

Finding the Fourth Proportional to 105,352.83, 145,386.90 and 57,606.21

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Solution

The fourth proportional to 105,352.83, 145,386.90 and 57,606.21 is: 79,496.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,352.83 : 145,386.90 = 57,606.21 : x
  2. Step 2: Convert to fraction form
    105,352.83/145,386.90 = 57,606.21/x
  3. Step 3: Cross multiply
    105,352.83x = 145,386.90 × 57,606.21
  4. Step 4: Simplify right side
    105,352.83x = 8,375,188,292.65
  5. Step 5: Solve for x
    x = 8,375,188,292.65/105,352.83
  6. Step 6: Final answer
    x = 79,496.57

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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.