Home / 142,935.36-197,069.52-102,148.20

Finding the Fourth Proportional to 142,935.36, 197,069.52 and 102,148.20

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Solution

The fourth proportional to 142,935.36, 197,069.52 and 102,148.20 is: 140,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,935.36 : 197,069.52 = 102,148.20 : x
  2. Step 2: Convert to fraction form
    142,935.36/197,069.52 = 102,148.20/x
  3. Step 3: Cross multiply
    142,935.36x = 197,069.52 × 102,148.20
  4. Step 4: Simplify right side
    142,935.36x = 20,130,296,742.86
  5. Step 5: Solve for x
    x = 20,130,296,742.86/142,935.36
  6. Step 6: Final answer
    x = 140,834.97

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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.