Home / 105,430.20-158,120.46-38,834.16

Finding the Fourth Proportional to 105,430.20, 158,120.46 and 38,834.16

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Solution

The fourth proportional to 105,430.20, 158,120.46 and 38,834.16 is: 58,242.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,430.20 : 158,120.46 = 38,834.16 : x
  2. Step 2: Convert to fraction form
    105,430.20/158,120.46 = 38,834.16/x
  3. Step 3: Cross multiply
    105,430.20x = 158,120.46 × 38,834.16
  4. Step 4: Simplify right side
    105,430.20x = 6,140,475,242.91
  5. Step 5: Solve for x
    x = 6,140,475,242.91/105,430.20
  6. Step 6: Final answer
    x = 58,242.09

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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.