Home / 185,815.14-256,423.76-100,931.46

Finding the Fourth Proportional to 185,815.14, 256,423.76 and 100,931.46

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Solution

The fourth proportional to 185,815.14, 256,423.76 and 100,931.46 is: 139,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,815.14 : 256,423.76 = 100,931.46 : x
  2. Step 2: Convert to fraction form
    185,815.14/256,423.76 = 100,931.46/x
  3. Step 3: Cross multiply
    185,815.14x = 256,423.76 × 100,931.46
  4. Step 4: Simplify right side
    185,815.14x = 25,881,224,475.49
  5. Step 5: Solve for x
    x = 25,881,224,475.49/185,815.14
  6. Step 6: Final answer
    x = 139,284.80

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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.