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Finding the Fourth Proportional to 117,737.55, 176,606.33 and 78,166.35

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Solution

The fourth proportional to 117,737.55, 176,606.33 and 78,166.35 is: 117,249.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,737.55 : 176,606.33 = 78,166.35 : x
  2. Step 2: Convert to fraction form
    117,737.55/176,606.33 = 78,166.35/x
  3. Step 3: Cross multiply
    117,737.55x = 176,606.33 × 78,166.35
  4. Step 4: Simplify right side
    117,737.55x = 13,804,671,812.16
  5. Step 5: Solve for x
    x = 13,804,671,812.16/117,737.55
  6. Step 6: Final answer
    x = 117,249.53

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1.5x scale

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.