Home / 142,423.20-196,482.24-85,802.04

Finding the Fourth Proportional to 142,423.20, 196,482.24 and 85,802.04

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Solution

The fourth proportional to 142,423.20, 196,482.24 and 85,802.04 is: 118,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,423.20 : 196,482.24 = 85,802.04 : x
  2. Step 2: Convert to fraction form
    142,423.20/196,482.24 = 85,802.04/x
  3. Step 3: Cross multiply
    142,423.20x = 196,482.24 × 85,802.04
  4. Step 4: Simplify right side
    142,423.20x = 16,858,577,015.77
  5. Step 5: Solve for x
    x = 16,858,577,015.77/142,423.20
  6. Step 6: Final answer
    x = 118,369.60

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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.