Home / 103,106.62-142,280.40-60,656.95

Finding the Fourth Proportional to 103,106.62, 142,280.40 and 60,656.95

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Solution

The fourth proportional to 103,106.62, 142,280.40 and 60,656.95 is: 83,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,106.62 : 142,280.40 = 60,656.95 : x
  2. Step 2: Convert to fraction form
    103,106.62/142,280.40 = 60,656.95/x
  3. Step 3: Cross multiply
    103,106.62x = 142,280.40 × 60,656.95
  4. Step 4: Simplify right side
    103,106.62x = 8,630,295,108.78
  5. Step 5: Solve for x
    x = 8,630,295,108.78/103,106.62
  6. Step 6: Final answer
    x = 83,702.63

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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.