Home / 118,018.32-162,869.40-64,307.76

Finding the Fourth Proportional to 118,018.32, 162,869.40 and 64,307.76

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Solution

The fourth proportional to 118,018.32, 162,869.40 and 64,307.76 is: 88,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,018.32 : 162,869.40 = 64,307.76 : x
  2. Step 2: Convert to fraction form
    118,018.32/162,869.40 = 64,307.76/x
  3. Step 3: Cross multiply
    118,018.32x = 162,869.40 × 64,307.76
  4. Step 4: Simplify right side
    118,018.32x = 10,473,766,286.54
  5. Step 5: Solve for x
    x = 10,473,766,286.54/118,018.32
  6. Step 6: Final answer
    x = 88,746.95

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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.