Home / 103,435.03-142,730.26-58,102.75

Finding the Fourth Proportional to 103,435.03, 142,730.26 and 58,102.75

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Solution

The fourth proportional to 103,435.03, 142,730.26 and 58,102.75 is: 80,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.03 : 142,730.26 = 58,102.75 : x
  2. Step 2: Convert to fraction form
    103,435.03/142,730.26 = 58,102.75/x
  3. Step 3: Cross multiply
    103,435.03x = 142,730.26 × 58,102.75
  4. Step 4: Simplify right side
    103,435.03x = 8,293,020,614.22
  5. Step 5: Solve for x
    x = 8,293,020,614.22/103,435.03
  6. Step 6: Final answer
    x = 80,176.13

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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.