Home / 185,599.36-256,127.76-100,716.40

Finding the Fourth Proportional to 185,599.36, 256,127.76 and 100,716.40

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Solution

The fourth proportional to 185,599.36, 256,127.76 and 100,716.40 is: 138,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,599.36 : 256,127.76 = 100,716.40 : x
  2. Step 2: Convert to fraction form
    185,599.36/256,127.76 = 100,716.40/x
  3. Step 3: Cross multiply
    185,599.36x = 256,127.76 × 100,716.40
  4. Step 4: Simplify right side
    185,599.36x = 25,796,265,927.26
  5. Step 5: Solve for x
    x = 25,796,265,927.26/185,599.36
  6. Step 6: Final answer
    x = 138,988.98

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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.