Home / 105,750.04-145,939.14-58,005.40

Finding the Fourth Proportional to 105,750.04, 145,939.14 and 58,005.40

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Solution

The fourth proportional to 105,750.04, 145,939.14 and 58,005.40 is: 80,049.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,750.04 : 145,939.14 = 58,005.40 : x
  2. Step 2: Convert to fraction form
    105,750.04/145,939.14 = 58,005.40/x
  3. Step 3: Cross multiply
    105,750.04x = 145,939.14 × 58,005.40
  4. Step 4: Simplify right side
    105,750.04x = 8,465,258,191.36
  5. Step 5: Solve for x
    x = 8,465,258,191.36/105,750.04
  6. Step 6: Final answer
    x = 80,049.69

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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.