Home / 102,134.08-140,943.02-56,810.52

Finding the Fourth Proportional to 102,134.08, 140,943.02 and 56,810.52

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Solution

The fourth proportional to 102,134.08, 140,943.02 and 56,810.52 is: 78,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,134.08 : 140,943.02 = 56,810.52 : x
  2. Step 2: Convert to fraction form
    102,134.08/140,943.02 = 56,810.52/x
  3. Step 3: Cross multiply
    102,134.08x = 140,943.02 × 56,810.52
  4. Step 4: Simplify right side
    102,134.08x = 8,007,046,256.57
  5. Step 5: Solve for x
    x = 8,007,046,256.57/102,134.08
  6. Step 6: Final answer
    x = 78,397.40

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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.