Home / 103,345.90-142,616.08-58,022.75

Finding the Fourth Proportional to 103,345.90, 142,616.08 and 58,022.75

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Solution

The fourth proportional to 103,345.90, 142,616.08 and 58,022.75 is: 80,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,345.90 : 142,616.08 = 58,022.75 : x
  2. Step 2: Convert to fraction form
    103,345.90/142,616.08 = 58,022.75/x
  3. Step 3: Cross multiply
    103,345.90x = 142,616.08 × 58,022.75
  4. Step 4: Simplify right side
    103,345.90x = 8,274,977,155.82
  5. Step 5: Solve for x
    x = 8,274,977,155.82/103,345.90
  6. Step 6: Final answer
    x = 80,070.69

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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.