Home / 142,316.44-196,368.78-85,730.92

Finding the Fourth Proportional to 142,316.44, 196,368.78 and 85,730.92

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Solution

The fourth proportional to 142,316.44, 196,368.78 and 85,730.92 is: 118,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,316.44 : 196,368.78 = 85,730.92 : x
  2. Step 2: Convert to fraction form
    142,316.44/196,368.78 = 85,730.92/x
  3. Step 3: Cross multiply
    142,316.44x = 196,368.78 × 85,730.92
  4. Step 4: Simplify right side
    142,316.44x = 16,834,876,168.68
  5. Step 5: Solve for x
    x = 16,834,876,168.68/142,316.44
  6. Step 6: Final answer
    x = 118,291.86

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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.