Home / 142,557.32-196,722.42-85,955.72

Finding the Fourth Proportional to 142,557.32, 196,722.42 and 85,955.72

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Solution

The fourth proportional to 142,557.32, 196,722.42 and 85,955.72 is: 118,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,557.32 : 196,722.42 = 85,955.72 : x
  2. Step 2: Convert to fraction form
    142,557.32/196,722.42 = 85,955.72/x
  3. Step 3: Cross multiply
    142,557.32x = 196,722.42 × 85,955.72
  4. Step 4: Simplify right side
    142,557.32x = 16,909,417,251.24
  5. Step 5: Solve for x
    x = 16,909,417,251.24/142,557.32
  6. Step 6: Final answer
    x = 118,614.86

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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.