Home / 153,353.02-211,639.97-85,382.89

Finding the Fourth Proportional to 153,353.02, 211,639.97 and 85,382.89

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Solution

The fourth proportional to 153,353.02, 211,639.97 and 85,382.89 is: 117,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,353.02 : 211,639.97 = 85,382.89 : x
  2. Step 2: Convert to fraction form
    153,353.02/211,639.97 = 85,382.89/x
  3. Step 3: Cross multiply
    153,353.02x = 211,639.97 × 85,382.89
  4. Step 4: Simplify right side
    153,353.02x = 18,070,432,278.11
  5. Step 5: Solve for x
    x = 18,070,432,278.11/153,353.02
  6. Step 6: Final answer
    x = 117,835.52

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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.