Home / 142,267.32-196,312.18-78,601.32

Finding the Fourth Proportional to 142,267.32, 196,312.18 and 78,601.32

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Solution

The fourth proportional to 142,267.32, 196,312.18 and 78,601.32 is: 108,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,267.32 : 196,312.18 = 78,601.32 : x
  2. Step 2: Convert to fraction form
    142,267.32/196,312.18 = 78,601.32/x
  3. Step 3: Cross multiply
    142,267.32x = 196,312.18 × 78,601.32
  4. Step 4: Simplify right side
    142,267.32x = 15,430,396,480.08
  5. Step 5: Solve for x
    x = 15,430,396,480.08/142,267.32
  6. Step 6: Final answer
    x = 108,460.58

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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.