Home / 105,249.24-157,737.78-78,746.04

Finding the Fourth Proportional to 105,249.24, 157,737.78 and 78,746.04

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Solution

The fourth proportional to 105,249.24, 157,737.78 and 78,746.04 is: 118,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,249.24 : 157,737.78 = 78,746.04 : x
  2. Step 2: Convert to fraction form
    105,249.24/157,737.78 = 78,746.04/x
  3. Step 3: Cross multiply
    105,249.24x = 157,737.78 × 78,746.04
  4. Step 4: Simplify right side
    105,249.24x = 12,421,225,533.39
  5. Step 5: Solve for x
    x = 12,421,225,533.39/105,249.24
  6. Step 6: Final answer
    x = 118,017.25

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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.