Home / 105,292.20-145,208.90-69,518.35

Finding the Fourth Proportional to 105,292.20, 145,208.90 and 69,518.35

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Solution

The fourth proportional to 105,292.20, 145,208.90 and 69,518.35 is: 95,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,292.20 : 145,208.90 = 69,518.35 : x
  2. Step 2: Convert to fraction form
    105,292.20/145,208.90 = 69,518.35/x
  3. Step 3: Cross multiply
    105,292.20x = 145,208.90 × 69,518.35
  4. Step 4: Simplify right side
    105,292.20x = 10,094,683,488.62
  5. Step 5: Solve for x
    x = 10,094,683,488.62/105,292.20
  6. Step 6: Final answer
    x = 95,873.04

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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.