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Finding the Fourth Proportional to 105,070.88, 144,952.08 and 69,214.88

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Solution

The fourth proportional to 105,070.88, 144,952.08 and 69,214.88 is: 95,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,070.88 : 144,952.08 = 69,214.88 : x
  2. Step 2: Convert to fraction form
    105,070.88/144,952.08 = 69,214.88/x
  3. Step 3: Cross multiply
    105,070.88x = 144,952.08 × 69,214.88
  4. Step 4: Simplify right side
    105,070.88x = 10,032,840,822.95
  5. Step 5: Solve for x
    x = 10,032,840,822.95/105,070.88
  6. Step 6: Final answer
    x = 95,486.41

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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.