Home / 122,117.40-183,176.10-72,253.80

Finding the Fourth Proportional to 122,117.40, 183,176.10 and 72,253.80

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Solution

The fourth proportional to 122,117.40, 183,176.10 and 72,253.80 is: 108,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.40 : 183,176.10 = 72,253.80 : x
  2. Step 2: Convert to fraction form
    122,117.40/183,176.10 = 72,253.80/x
  3. Step 3: Cross multiply
    122,117.40x = 183,176.10 × 72,253.80
  4. Step 4: Simplify right side
    122,117.40x = 13,235,169,294.18
  5. Step 5: Solve for x
    x = 13,235,169,294.18/122,117.40
  6. Step 6: Final answer
    x = 108,380.70

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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.