Home / 105,048.32-157,572.40-31,176.32

Finding the Fourth Proportional to 105,048.32, 157,572.40 and 31,176.32

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Solution

The fourth proportional to 105,048.32, 157,572.40 and 31,176.32 is: 46,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,048.32 : 157,572.40 = 31,176.32 : x
  2. Step 2: Convert to fraction form
    105,048.32/157,572.40 = 31,176.32/x
  3. Step 3: Cross multiply
    105,048.32x = 157,572.40 × 31,176.32
  4. Step 4: Simplify right side
    105,048.32x = 4,912,527,565.57
  5. Step 5: Solve for x
    x = 4,912,527,565.57/105,048.32
  6. Step 6: Final answer
    x = 46,764.46

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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.