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Finding the Fourth Proportional to 109,957.37, 151,755.47 and 61,577.74

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Solution

The fourth proportional to 109,957.37, 151,755.47 and 61,577.74 is: 84,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,957.37 : 151,755.47 = 61,577.74 : x
  2. Step 2: Convert to fraction form
    109,957.37/151,755.47 = 61,577.74/x
  3. Step 3: Cross multiply
    109,957.37x = 151,755.47 × 61,577.74
  4. Step 4: Simplify right side
    109,957.37x = 9,344,758,480.71
  5. Step 5: Solve for x
    x = 9,344,758,480.71/109,957.37
  6. Step 6: Final answer
    x = 84,985.29

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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.