Home / 142,430.94-196,104.78-125,423.64

Finding the Fourth Proportional to 142,430.94, 196,104.78 and 125,423.64

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Solution

The fourth proportional to 142,430.94, 196,104.78 and 125,423.64 is: 172,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,430.94 : 196,104.78 = 125,423.64 : x
  2. Step 2: Convert to fraction form
    142,430.94/196,104.78 = 125,423.64/x
  3. Step 3: Cross multiply
    142,430.94x = 196,104.78 × 125,423.64
  4. Step 4: Simplify right side
    142,430.94x = 24,596,175,329.00
  5. Step 5: Solve for x
    x = 24,596,175,329.00/142,430.94
  6. Step 6: Final answer
    x = 172,688.43

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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.