Home / 102,131.08-140,938.88-56,807.52

Finding the Fourth Proportional to 102,131.08, 140,938.88 and 56,807.52

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Solution

The fourth proportional to 102,131.08, 140,938.88 and 56,807.52 is: 78,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.08 : 140,938.88 = 56,807.52 : x
  2. Step 2: Convert to fraction form
    102,131.08/140,938.88 = 56,807.52/x
  3. Step 3: Cross multiply
    102,131.08x = 140,938.88 × 56,807.52
  4. Step 4: Simplify right side
    102,131.08x = 8,006,388,244.38
  5. Step 5: Solve for x
    x = 8,006,388,244.38/102,131.08
  6. Step 6: Final answer
    x = 78,393.26

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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.