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Finding the Fourth Proportional to 145,666.68, 200,973.09 and 88,329

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Solution

The fourth proportional to 145,666.68, 200,973.09 and 88,329 is: 121,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,666.68 : 200,973.09 = 88,329 : x
  2. Step 2: Convert to fraction form
    145,666.68/200,973.09 = 88,329/x
  3. Step 3: Cross multiply
    145,666.68x = 200,973.09 × 88,329
  4. Step 4: Simplify right side
    145,666.68x = 17,751,752,066.61
  5. Step 5: Solve for x
    x = 17,751,752,066.61/145,666.68
  6. Step 6: Final answer
    x = 121,865.56

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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.