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Finding the Fourth Proportional to 114,347.84, 157,854.88 and 80,385.44

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Solution

The fourth proportional to 114,347.84, 157,854.88 and 80,385.44 is: 110,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,347.84 : 157,854.88 = 80,385.44 : x
  2. Step 2: Convert to fraction form
    114,347.84/157,854.88 = 80,385.44/x
  3. Step 3: Cross multiply
    114,347.84x = 157,854.88 × 80,385.44
  4. Step 4: Simplify right side
    114,347.84x = 12,689,233,984.95
  5. Step 5: Solve for x
    x = 12,689,233,984.95/114,347.84
  6. Step 6: Final answer
    x = 110,970.47

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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.