Home / 153,239.45-211,420.02-92,787.12

Finding the Fourth Proportional to 153,239.45, 211,420.02 and 92,787.12

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Solution

The fourth proportional to 153,239.45, 211,420.02 and 92,787.12 is: 128,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,239.45 : 211,420.02 = 92,787.12 : x
  2. Step 2: Convert to fraction form
    153,239.45/211,420.02 = 92,787.12/x
  3. Step 3: Cross multiply
    153,239.45x = 211,420.02 × 92,787.12
  4. Step 4: Simplify right side
    153,239.45x = 19,617,055,114.09
  5. Step 5: Solve for x
    x = 19,617,055,114.09/153,239.45
  6. Step 6: Final answer
    x = 128,015.70

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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.