Home / 142,814.79-197,084.57-79,152.64

Finding the Fourth Proportional to 142,814.79, 197,084.57 and 79,152.64

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Solution

The fourth proportional to 142,814.79, 197,084.57 and 79,152.64 is: 109,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,814.79 : 197,084.57 = 79,152.64 : x
  2. Step 2: Convert to fraction form
    142,814.79/197,084.57 = 79,152.64/x
  3. Step 3: Cross multiply
    142,814.79x = 197,084.57 × 79,152.64
  4. Step 4: Simplify right side
    142,814.79x = 15,599,763,130.29
  5. Step 5: Solve for x
    x = 15,599,763,130.29/142,814.79
  6. Step 6: Final answer
    x = 109,230.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.