Home / 185,316.78-255,730.29-100,432.02

Finding the Fourth Proportional to 185,316.78, 255,730.29 and 100,432.02

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Solution

The fourth proportional to 185,316.78, 255,730.29 and 100,432.02 is: 138,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,316.78 : 255,730.29 = 100,432.02 : x
  2. Step 2: Convert to fraction form
    185,316.78/255,730.29 = 100,432.02/x
  3. Step 3: Cross multiply
    185,316.78x = 255,730.29 × 100,432.02
  4. Step 4: Simplify right side
    185,316.78x = 25,683,509,599.89
  5. Step 5: Solve for x
    x = 25,683,509,599.89/185,316.78
  6. Step 6: Final answer
    x = 138,592.47

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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.