Home / 105,090.29-145,023.40-57,344.44

Finding the Fourth Proportional to 105,090.29, 145,023.40 and 57,344.44

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Solution

The fourth proportional to 105,090.29, 145,023.40 and 57,344.44 is: 79,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.29 : 145,023.40 = 57,344.44 : x
  2. Step 2: Convert to fraction form
    105,090.29/145,023.40 = 57,344.44/x
  3. Step 3: Cross multiply
    105,090.29x = 145,023.40 × 57,344.44
  4. Step 4: Simplify right side
    105,090.29x = 8,316,285,153.98
  5. Step 5: Solve for x
    x = 8,316,285,153.98/105,090.29
  6. Step 6: Final answer
    x = 79,134.67

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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.