Home / 105,749.13-145,932.80-58,002.67

Finding the Fourth Proportional to 105,749.13, 145,932.80 and 58,002.67

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Solution

The fourth proportional to 105,749.13, 145,932.80 and 58,002.67 is: 80,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.13 : 145,932.80 = 58,002.67 : x
  2. Step 2: Convert to fraction form
    105,749.13/145,932.80 = 58,002.67/x
  3. Step 3: Cross multiply
    105,749.13x = 145,932.80 × 58,002.67
  4. Step 4: Simplify right side
    105,749.13x = 8,464,492,040.58
  5. Step 5: Solve for x
    x = 8,464,492,040.58/105,749.13
  6. Step 6: Final answer
    x = 80,043.14

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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.