Home / 112,541.40-168,812.10-72,883.80

Finding the Fourth Proportional to 112,541.40, 168,812.10 and 72,883.80

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Solution

The fourth proportional to 112,541.40, 168,812.10 and 72,883.80 is: 109,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,541.40 : 168,812.10 = 72,883.80 : x
  2. Step 2: Convert to fraction form
    112,541.40/168,812.10 = 72,883.80/x
  3. Step 3: Cross multiply
    112,541.40x = 168,812.10 × 72,883.80
  4. Step 4: Simplify right side
    112,541.40x = 12,303,667,333.98
  5. Step 5: Solve for x
    x = 12,303,667,333.98/112,541.40
  6. Step 6: Final answer
    x = 109,325.70

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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.