Home / 103,345.40-142,615.39-58,022.25

Finding the Fourth Proportional to 103,345.40, 142,615.39 and 58,022.25

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Solution

The fourth proportional to 103,345.40, 142,615.39 and 58,022.25 is: 80,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,345.40 : 142,615.39 = 58,022.25 : x
  2. Step 2: Convert to fraction form
    103,345.40/142,615.39 = 58,022.25/x
  3. Step 3: Cross multiply
    103,345.40x = 142,615.39 × 58,022.25
  4. Step 4: Simplify right side
    103,345.40x = 8,274,865,812.43
  5. Step 5: Solve for x
    x = 8,274,865,812.43/103,345.40
  6. Step 6: Final answer
    x = 80,070.00

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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.