Home / 105,778.15-145,977.63-58,032.88

Finding the Fourth Proportional to 105,778.15, 145,977.63 and 58,032.88

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Solution

The fourth proportional to 105,778.15, 145,977.63 and 58,032.88 is: 80,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778.15 : 145,977.63 = 58,032.88 : x
  2. Step 2: Convert to fraction form
    105,778.15/145,977.63 = 58,032.88/x
  3. Step 3: Cross multiply
    105,778.15x = 145,977.63 × 58,032.88
  4. Step 4: Simplify right side
    105,778.15x = 8,471,502,284.47
  5. Step 5: Solve for x
    x = 8,471,502,284.47/105,778.15
  6. Step 6: Final answer
    x = 80,087.45

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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.