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Finding the Fourth Proportional to 117,006.70, 175,510.05 and 38,128.90

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Solution

The fourth proportional to 117,006.70, 175,510.05 and 38,128.90 is: 57,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,006.70 : 175,510.05 = 38,128.90 : x
  2. Step 2: Convert to fraction form
    117,006.70/175,510.05 = 38,128.90/x
  3. Step 3: Cross multiply
    117,006.70x = 175,510.05 × 38,128.90
  4. Step 4: Simplify right side
    117,006.70x = 6,692,005,145.45
  5. Step 5: Solve for x
    x = 6,692,005,145.45/117,006.70
  6. Step 6: Final answer
    x = 57,193.35

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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.