Home / 105,740.49-145,931.11-58,003.06

Finding the Fourth Proportional to 105,740.49, 145,931.11 and 58,003.06

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Solution

The fourth proportional to 105,740.49, 145,931.11 and 58,003.06 is: 80,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,740.49 : 145,931.11 = 58,003.06 : x
  2. Step 2: Convert to fraction form
    105,740.49/145,931.11 = 58,003.06/x
  3. Step 3: Cross multiply
    105,740.49x = 145,931.11 × 58,003.06
  4. Step 4: Simplify right side
    105,740.49x = 8,464,450,929.20
  5. Step 5: Solve for x
    x = 8,464,450,929.20/105,740.49
  6. Step 6: Final answer
    x = 80,049.29

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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.