Home / 109,512.94-151,127.55-61,114.35

Finding the Fourth Proportional to 109,512.94, 151,127.55 and 61,114.35

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Solution

The fourth proportional to 109,512.94, 151,127.55 and 61,114.35 is: 84,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,512.94 : 151,127.55 = 61,114.35 : x
  2. Step 2: Convert to fraction form
    109,512.94/151,127.55 = 61,114.35/x
  3. Step 3: Cross multiply
    109,512.94x = 151,127.55 × 61,114.35
  4. Step 4: Simplify right side
    109,512.94x = 9,236,061,985.34
  5. Step 5: Solve for x
    x = 9,236,061,985.34/109,512.94
  6. Step 6: Final answer
    x = 84,337.63

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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.