Home / 105,354.10-158,007.43-30,457.56

Finding the Fourth Proportional to 105,354.10, 158,007.43 and 30,457.56

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Solution

The fourth proportional to 105,354.10, 158,007.43 and 30,457.56 is: 45,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,354.10 : 158,007.43 = 30,457.56 : x
  2. Step 2: Convert to fraction form
    105,354.10/158,007.43 = 30,457.56/x
  3. Step 3: Cross multiply
    105,354.10x = 158,007.43 × 30,457.56
  4. Step 4: Simplify right side
    105,354.10x = 4,812,520,779.67
  5. Step 5: Solve for x
    x = 4,812,520,779.67/105,354.10
  6. Step 6: Final answer
    x = 45,679.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.