Home / 105,156.46-157,575.12-77,095.20

Finding the Fourth Proportional to 105,156.46, 157,575.12 and 77,095.20

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Solution

The fourth proportional to 105,156.46, 157,575.12 and 77,095.20 is: 115,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,156.46 : 157,575.12 = 77,095.20 : x
  2. Step 2: Convert to fraction form
    105,156.46/157,575.12 = 77,095.20/x
  3. Step 3: Cross multiply
    105,156.46x = 157,575.12 × 77,095.20
  4. Step 4: Simplify right side
    105,156.46x = 12,148,285,693.22
  5. Step 5: Solve for x
    x = 12,148,285,693.22/105,156.46
  6. Step 6: Final answer
    x = 115,525.81

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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.