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Finding the Fourth Proportional to 130,980.92, 196,307.08 and 56,013.05

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Solution

The fourth proportional to 130,980.92, 196,307.08 and 56,013.05 is: 83,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,980.92 : 196,307.08 = 56,013.05 : x
  2. Step 2: Convert to fraction form
    130,980.92/196,307.08 = 56,013.05/x
  3. Step 3: Cross multiply
    130,980.92x = 196,307.08 × 56,013.05
  4. Step 4: Simplify right side
    130,980.92x = 10,995,758,638.13
  5. Step 5: Solve for x
    x = 10,995,758,638.13/130,980.92
  6. Step 6: Final answer
    x = 83,949.32

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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.