Home / 142,168.23-196,235.58-87,737.04

Finding the Fourth Proportional to 142,168.23, 196,235.58 and 87,737.04

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Solution

The fourth proportional to 142,168.23, 196,235.58 and 87,737.04 is: 121,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,168.23 : 196,235.58 = 87,737.04 : x
  2. Step 2: Convert to fraction form
    142,168.23/196,235.58 = 87,737.04/x
  3. Step 3: Cross multiply
    142,168.23x = 196,235.58 × 87,737.04
  4. Step 4: Simplify right side
    142,168.23x = 17,217,128,931.88
  5. Step 5: Solve for x
    x = 17,217,128,931.88/142,168.23
  6. Step 6: Final answer
    x = 121,103.91

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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.