Home / 105,271.92-157,970.40-38,758.77

Finding the Fourth Proportional to 105,271.92, 157,970.40 and 38,758.77

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Solution

The fourth proportional to 105,271.92, 157,970.40 and 38,758.77 is: 58,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.92 : 157,970.40 = 38,758.77 : x
  2. Step 2: Convert to fraction form
    105,271.92/157,970.40 = 38,758.77/x
  3. Step 3: Cross multiply
    105,271.92x = 157,970.40 × 38,758.77
  4. Step 4: Simplify right side
    105,271.92x = 6,122,738,400.41
  5. Step 5: Solve for x
    x = 6,122,738,400.41/105,271.92
  6. Step 6: Final answer
    x = 58,161.17

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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.