Home / 113,992.04-157,328.15-77,181.56

Finding the Fourth Proportional to 113,992.04, 157,328.15 and 77,181.56

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Solution

The fourth proportional to 113,992.04, 157,328.15 and 77,181.56 is: 106,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,992.04 : 157,328.15 = 77,181.56 : x
  2. Step 2: Convert to fraction form
    113,992.04/157,328.15 = 77,181.56/x
  3. Step 3: Cross multiply
    113,992.04x = 157,328.15 × 77,181.56
  4. Step 4: Simplify right side
    113,992.04x = 12,142,832,048.91
  5. Step 5: Solve for x
    x = 12,142,832,048.91/113,992.04
  6. Step 6: Final answer
    x = 106,523.51

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1.5x scale

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.