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Finding the Fourth Proportional to 108,857.51, 150,222.05 and 61,109.63

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Solution

The fourth proportional to 108,857.51, 150,222.05 and 61,109.63 is: 84,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,857.51 : 150,222.05 = 61,109.63 : x
  2. Step 2: Convert to fraction form
    108,857.51/150,222.05 = 61,109.63/x
  3. Step 3: Cross multiply
    108,857.51x = 150,222.05 × 61,109.63
  4. Step 4: Simplify right side
    108,857.51x = 9,180,013,587.79
  5. Step 5: Solve for x
    x = 9,180,013,587.79/108,857.51
  6. Step 6: Final answer
    x = 84,330.55

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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.