Home / 103,658.03-143,055.32-58,340.35

Finding the Fourth Proportional to 103,658.03, 143,055.32 and 58,340.35

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Solution

The fourth proportional to 103,658.03, 143,055.32 and 58,340.35 is: 80,513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.03 : 143,055.32 = 58,340.35 : x
  2. Step 2: Convert to fraction form
    103,658.03/143,055.32 = 58,340.35/x
  3. Step 3: Cross multiply
    103,658.03x = 143,055.32 × 58,340.35
  4. Step 4: Simplify right side
    103,658.03x = 8,345,897,325.28
  5. Step 5: Solve for x
    x = 8,345,897,325.28/103,658.03
  6. Step 6: Final answer
    x = 80,513.76

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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.