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Finding the Fourth Proportional to 104,683.78, 144,465.45 and 56,937.45

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Solution

The fourth proportional to 104,683.78, 144,465.45 and 56,937.45 is: 78,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,683.78 : 144,465.45 = 56,937.45 : x
  2. Step 2: Convert to fraction form
    104,683.78/144,465.45 = 56,937.45/x
  3. Step 3: Cross multiply
    104,683.78x = 144,465.45 × 56,937.45
  4. Step 4: Simplify right side
    104,683.78x = 8,225,494,336.10
  5. Step 5: Solve for x
    x = 8,225,494,336.10/104,683.78
  6. Step 6: Final answer
    x = 78,574.68

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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.