Home / 105,267.76-145,270.28-57,521.08

Finding the Fourth Proportional to 105,267.76, 145,270.28 and 57,521.08

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Solution

The fourth proportional to 105,267.76, 145,270.28 and 57,521.08 is: 79,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,267.76 : 145,270.28 = 57,521.08 : x
  2. Step 2: Convert to fraction form
    105,267.76/145,270.28 = 57,521.08/x
  3. Step 3: Cross multiply
    105,267.76x = 145,270.28 × 57,521.08
  4. Step 4: Simplify right side
    105,267.76x = 8,356,103,397.50
  5. Step 5: Solve for x
    x = 8,356,103,397.50/105,267.76
  6. Step 6: Final answer
    x = 79,379.51

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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.