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Finding the Fourth Proportional to 105,461.68, 145,605.04 and 94,111.66

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Solution

The fourth proportional to 105,461.68, 145,605.04 and 94,111.66 is: 129,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.68 : 145,605.04 = 94,111.66 : x
  2. Step 2: Convert to fraction form
    105,461.68/145,605.04 = 94,111.66/x
  3. Step 3: Cross multiply
    105,461.68x = 145,605.04 × 94,111.66
  4. Step 4: Simplify right side
    105,461.68x = 13,703,131,419.47
  5. Step 5: Solve for x
    x = 13,703,131,419.47/105,461.68
  6. Step 6: Final answer
    x = 129,934.70

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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.