Home / 137,378.08-206,007.72-47,430.28

Finding the Fourth Proportional to 137,378.08, 206,007.72 and 47,430.28

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Solution

The fourth proportional to 137,378.08, 206,007.72 and 47,430.28 is: 71,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,378.08 : 206,007.72 = 47,430.28 : x
  2. Step 2: Convert to fraction form
    137,378.08/206,007.72 = 47,430.28/x
  3. Step 3: Cross multiply
    137,378.08x = 206,007.72 × 47,430.28
  4. Step 4: Simplify right side
    137,378.08x = 9,771,003,841.76
  5. Step 5: Solve for x
    x = 9,771,003,841.76/137,378.08
  6. Step 6: Final answer
    x = 71,124.91

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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.