Home / 129,810.57-194,715.75-36,316.32

Finding the Fourth Proportional to 129,810.57, 194,715.75 and 36,316.32

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Solution

The fourth proportional to 129,810.57, 194,715.75 and 36,316.32 is: 54,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,810.57 : 194,715.75 = 36,316.32 : x
  2. Step 2: Convert to fraction form
    129,810.57/194,715.75 = 36,316.32/x
  3. Step 3: Cross multiply
    129,810.57x = 194,715.75 × 36,316.32
  4. Step 4: Simplify right side
    129,810.57x = 7,071,359,622.23
  5. Step 5: Solve for x
    x = 7,071,359,622.23/129,810.57
  6. Step 6: Final answer
    x = 54,474.45

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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.