Home / 105,847.40-146,077.08-69,975.20

Finding the Fourth Proportional to 105,847.40, 146,077.08 and 69,975.20

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Solution

The fourth proportional to 105,847.40, 146,077.08 and 69,975.20 is: 96,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,847.40 : 146,077.08 = 69,975.20 : x
  2. Step 2: Convert to fraction form
    105,847.40/146,077.08 = 69,975.20/x
  3. Step 3: Cross multiply
    105,847.40x = 146,077.08 × 69,975.20
  4. Step 4: Simplify right side
    105,847.40x = 10,221,772,888.42
  5. Step 5: Solve for x
    x = 10,221,772,888.42/105,847.40
  6. Step 6: Final answer
    x = 96,570.85

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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.